/* 
<!-- 
 * $Source: /web/cvs/olc/webapp/styles/shared/v2_functions.js,v $
 * $Revision: 1.25 $
 * $Author: mathews $
 * $Date: 2009/06/22 10:34:16 $
 * 
 * Copyright 2004 The McGraw-Hill Companies.  All Rights Reserved
 * Revision history omitted from clientside files; check CVS log instead
 
--> 
*/

/* 
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
::
::  This file contains shared functions which are used in more than one 
::  style. (Currently, that means v2 and v2_Powertext.)  Javascript 
::  functions specific to each style are in {stylename}_dhtml.js. 
::  Functions which can reasonably be used generically are in common.js.
::
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
*/


/* 
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
   Init and Page monitor
   See also initLayers() and PageLoad() in *dhtml.js
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
*/

document.write('<SCRIPT LANGUAGE="JavaScript" type="text/javascript" src="/olcweb/styles/shared/server_constants.js"></SCRIPT>');	

function InitPrefs() {
/* No longer needed (prefs doesn't pop a window anymore)

	// Needed when clicking back from savePrefs window.  Unfortunately
	// some browsers (NS7, others?) trigger onFocus frequently and apparently 
	// at random, so we add the extra needPrefsUpdate variable as a trigger.
	
	if (needPrefsUpdate == 1) {
		loadOlcCookie(document.forms.dataContainer.isbn.value);
		updateForms();
		InitLayers();
		needPrefsUpdate = 0;
	}

*/
}

function eatCookies() {
	// check to see if there are too many cookies on this domain; if so, eat some.
	var allCookies = document.cookie.split("; ");
	if (allCookies.length > 17) {
		var theUrl = "/olcweb/styles/shared/eatcookies.html?" + document.forms.dataContainer.isbn.value;
		window.open(theUrl,"eatCookies","width=300,height=400,resizable,scrollbars");
	}
}


function Monitor() {
	// This script runs continuously, checking for changed window state (scroll, size)
	// and handling the drawer animations.
	
	// Originally had the drawers using their own setIntervals, but Opera on Windows
	// doesn't handle that very well. (memory problems, I think.)
	
	// check for window resize:
	if (winWidth != getWindowWidth()) InitLayers();
	
	// check for window scroll:
	if (typeof(window.pageYOffset) != "undefined") {
		// Netscape 4; must check this first or else N7 gets lost
		if (window.pageYOffset != scrolledBy) {
			scrolledBy = window.pageYOffset;
			floatNav == 1 ? doFloatToolbarOnly() : doFloat();
		}
	} else if (typeof(document.body) != "undefined") {
		if (typeof(document.body.scrollTop) != "undefined") {
			// IE, Mozilla
			if (document.body.scrollTop != scrolledBy) {
				scrolledBy = document.body.scrollTop;
				floatNav == 1 ? doFloatToolbarOnly() : doFloat();
			}
		} else {
			// Opera:  body.scrollTop should work, but doesn't...?
			// try to fix this... this is the only reason floating doesn't
			// work in opera right now.
			scrolledBy=0;
		}
	} else {
		// unknown, noncompliant browser
		scrolledBy = 0;
	}
	
	// run any ongoing scripts:
	if (curScript) {
		eval(curScript);
	}
	return true;
}

/* 
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
   DHTML functions
   See also startNav() and stopNav() in *dhtml.js
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
*/

function glideIn(myName, stopPos, whenDone) {
	var curTop = getTop(myName);
	if (curTop >= stopPos) {
		// stop the animation
		setTop(myName, stopPos);
		
		// workaround for a browser-specific visual glitch:
		if (navigator.appName.indexOf("Netscape") != -1 && parseInt(navigator.appVersion) == 4) {
			hideLayer(myName);
			window.setTimeout("showLayer('"+myName+"');",5);
		}

		if (whenDone) eval(whenDone);
		curScript = nextScript; 
		nextScript = "";
	} else {
		// Netscape 6 is way slow... so we bump its speed up.
		if (browserIs.ns && (browserIs.major == 6)) {
			var newTop = (glideSpeed > 0) ? Math.ceil(curTop + ((stopPos-curTop) / (glideSpeed / 2))) + 1 : stopPos;
		} else {
			var newTop = (glideSpeed > 0) ? Math.ceil(curTop + ((stopPos-curTop) / (glideSpeed * 4))) + 1 : stopPos;
		}
		setTop(myName, newTop);
	}
}

function glideOut(myName, startPos, whenDone) {
	var curTop = getTop(myName);
	if (curTop <= -1000) {
		// stop the animation
		hideLayer(myName);
		setZindex(myName, 6);
		if (whenDone) eval(whenDone);
		curScript = nextScript;
		nextScript = ""; 
	} else {
		// Netscape 6 is way slow... so we bump its speed up.
		if (browserIs.ns && (browserIs.major == 6)) {
			var newTop = (glideSpeed > 0) ? Math.ceil(curTop - ((startPos-curTop) / (glideSpeed / 4))) - 1 : -1000;
		} else {
			var newTop = (glideSpeed > 0) ? Math.ceil(curTop - ((startPos-curTop) / (glideSpeed * 2))) - 1 : -1000;
		}
		setTop(myName, newTop);
	}
}


function startAnimation(newAnim) {
	if (curScript == "") {
		curScript = newAnim;
	} else {
		nextScript = newAnim;
	}
}

function startUser() {
	if (loggedIn == 1) {
		//teachersEdition == 1 ? startTool("toolProfileProf") : startTool("toolProfile");
		startTool("toolProfile");
	} else {
		startTool("toolLogin");
	}
}

function checkForcedLogin(theUrl, theTarget) {
	if (loggedIn == 1) {
		if (theTarget) {
			window.open(theUrl, theTarget, "toolbar=yes,location=yes,scrollbars=yes");
		} else {
			// window.location.href=theUrl;
			// For some reason the above fails in IE/Win.  This works, though:
			setTimeout("window.location='"+theUrl+"';",10);
		}
	} else {
		// pass the desired URL into the login form:
		document.forms.loginForm.goto_url.value = theUrl;
		if (curTool != "toolLogin") {
			stopTool(); // just in case
			startTool("toolLogin");
		}
	} 
}

function startTool(myName) {
if(myName == "toolSearch"){
alert("Search is temporarily disabled.\nThis will be restored.");

}else{
if (curTool != "") stopTool();
	setTop(myName,-1000);
	setZindex(myName, 7);
	showLayer(myName);
	curTool=myName;
	startAnimation("glideIn('"+myName+"', toolTop,'');");
}
}

function stopTool(whichTool) {
	// disabled: eRights takes care of this for us
	// need to prevent closing it if we're on a locked page and not logged in.
	//if ((whichTool == 'toolLoginForced') && (isLocked == 1) && (loggedIn == 0)) {
	//	alert("Sorry; you must log in before you can close the drawer on this page.");
	//} else {
		if (curTool != "") startAnimation("glideOut('"+curTool+"',toolTop,'');");
		curTool = "";
	//}
}

function swapNav(newNav) {
	if ((teachersEdition == 0) && (newNav == "navInstructor")) {
		alert("You must be logged in as an instructor to see the Instructor Resources.");
	} else {
		if ((newNav == "nav") && (teachersEdition == 1)) {
			newNav = "navTE";
		}
		showLayer(newNav);
		hideLayer(curNav);
		curNav = newNav;
		setSessionCookie("olcnav",curNav);
	}
}

function hideTools() {
	for (i in toolLayers) {
		if (getObj(toolLayers[i])) {
			setTop(toolLayers[i], -1000);
		}
	}
}

function doFloat() {
	if (floatNav > 0) {
		toolTop = (scrolledBy > toolOrigin) ? scrolledBy : toolOrigin;
	} else {
		toolTop = toolOrigin;
	}
	showToolbar();

	for (i in floaters) {
		setTop(floaters[i], toolTop);
	}
	for (i in offsetFloaters) {
		setTop(offsetFloaters[i], toolTop+navOffset);
	}

	setTop(curTool, toolTop);
}

function doNoFloat() {
	toolTop = (scrolledBy > toolOrigin) ? scrolledBy : toolOrigin;
	showToolbar();
	// now move everything else
	for (i in floaters) {
		setTop(floaters[i], toolTop);
	}
	for (i in offsetFloaters) {
		setTop(offsetFloaters[i], toolTop+navOffset);
	}
}

function doFloatToolbarOnly() {
	toolTop = (scrolledBy > toolOrigin) ? scrolledBy : toolOrigin;
	if ((scrolledBy > toolOrigin) && (curTool == "")) {
		var theTool = showToolbar();
		setTop(theTool, -100);
		startAnimation("glideIn('"+theTool+"',toolTop,'');");
	} else {
		doFloat();
	}
}

function showToolbar() {
	var theBar = "";
	
	if (scrolledBy > toolOrigin) {		
		if (loggedIn == 1) {
			theBar = (floatNav == 2 ? "toolbar" : "toolbarNocrumb");
		} else {
			theBar = (floatNav == 2 ? "toolbarNologin" : "toolbarNologinNocrumb");
		}
	} else {
		theBar = (loggedIn == 1 ? "toolbar" : "toolbarNologin");
	}
	hideLayer("toolbar");
	hideLayer("toolbarNologin");
	hideLayer("toolbarNocrumb");
	hideLayer("toolbarNologinNocrumb");
	showLayer(theBar);
	return theBar;
}

function glossaryOn(thisDefinition,thisX,thisY){
	var def = "gloss" + thisDefinition;
	var myObj = new getObj(def);
	var totalGlossWidth = thisX + parseInt(myObj.style.width) + 40;
	
	if(totalGlossWidth >= window.innerWidth){myObj.style.left =( thisX + document.body.scrollLeft - parseInt(myObj.style.width) - 20);}
	else{myObj.style.left = (thisX + document.body.scrollLeft + 15);}
	
	if(myObj.style != null){myObj.style.display="inline";}
	
	var totalGlossHeight = thisY + document.getElementById(def).offsetHeight;
	if(totalGlossHeight >= window.innerHeight){myObj.style.top = (thisY + document.body.scrollTop - document.getElementById(def).offsetHeight);}
	else{myObj.style.top = (thisY + document.body.scrollTop + 5);}
	
	if(myObj.style != null){
		myObj.style.visibility="visible";
		myObj.visibility="visible";
	}
}
function glossaryOff(thisDefinition,thisX,thisY){
	var def = "gloss" + thisDefinition;
	hideLayer(def);
	var myObj = new getObj(def);
	myObj.style.left = 0;
	myObj.style.top = 0;
}

/* 
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
   Cookies and Login
   See also validateStudyPlan() in powertextdhtml.js
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
*/

function validateLogin(isForced) {

	// check cookies first:
	testcookie = setCookie('test','Chocolate Chip');
	testget = getCookie('test');
	if (testget != 'Chocolate Chip') {
		alert("You must enable cookies in your browser to log in to this site.");
		return false;
	}
	deleteCookie('test');

	var f = document.forms.loginForm;
//	alert("HTTPS Server:"+https_server_url);
//	alert("Form Action:"+f.action);

        if(f.action.indexOf("http") < 0) { 
		f.action = https_server_url  +f.action;
        }
//	alert("Form Action changed to:"+f.action);
	
	/* The onChange handlers on username and password don't always get triggered 
	   (safari blocks it on the password field, and IE and mozilla auto-complete can cause problems)
	   so we duplicate them here:
	*/
	
	if (isEmpty(f.email.value)) {
		f.email.value = window.document.forms.frmLogin.email.value;
	}
	if (isEmpty(f.password.value)) {
		f.password.value = window.document.forms.frmLogin.password.value;
	}
	
	if (isForced == "") {f.goto_url = document.location.href};
	
	if (isEmpty(f.email.value) || isEmpty(f.password.value)) {
		alert("Please enter a username and password.");
		return false;
	} else {
		stopTool();
		document.forms.loginForm.submit();
	}
}

function validatePrefs(f) {
	
	var errstring = "";
	
	/* can't edit this value anymore
	if (f.myEmail) {
		if (!(isEmail(f.myEmail.value)) && (f.myEmail.value != "")) {
			errstring += "The email address you entered is invalid.\r";
		}
	}
	*/
	if (f.prof_email) {
		if (!(isEmail(f.prof_email.value)) && (f.prof_email.value != "")) {
			errstring += "The instructor email address you entered is invalid.\n";
		}
	}
	if (f.ta_email) {
		if (!(isEmail(f.ta_email.value)) && (f.ta_email.value != "")) {
			errstring += "The TA email address you entered is invalid.\n";
		}
	}
	if (f.other_email) {
		if (!(isEmail(f.other_email.value)) && (f.other_email.value != "")) {
			errstring += "The 'other' email address you entered is invalid.\n";
		}
	}

	if (errstring == "") {
		//window.open("","prefsWin","width=300,height=100,toolbar=no,status=no,scrollbars=no,location=no");
		stopTool();
		//needPrefsUpdate=1;  
		return true;
	} else {
		alert(errstring);
		return false;
	}
}

function doLogout() {
	// clear the login cookie, and reset any prefs
	// SMS is supposed to delete the cookie on its own, but apparently sometimes it fails. So we'll try again here:
	
	deleteCookie("OLC" + window.document.forms.dataContainer.isbn.value);
	deleteCookie("OLCGroup");

	/* 
	Removing the alert, since even if the cookie is still present, the user still isn't logged in (see loadOlcCookie().)
	Worst thing that can happen is that the software keeps trying and failing to delete the cookie; no big deal.
	
	if (getCookie("OLC" + window.document.forms.dataContainer.isbn.value) || getCookie("olcGroup")) {
		alert("We're sorry, but the web browser you are using does not clear your user data on logout. Quit the program to log out.");
	}
	*/
}

/* 
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
   Cookies specifically relating to 2003 OLC's
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
*/


function loadOlcCookie(isbn) {

	var cookieName = getCookie("OLCGroup") ? "OLCGroup" : "OLC"+isbn;

	if (getCookie(cookieName)) {
		if (getCookie(cookieName) == "expire") {
			// kludge, in case server didn't manage to expire the cookie
			doLogout();
		} else {
			loggedIn = 1;
			var f = window.document.forms.dataContainer;
			
			// Admin account doesn't set all values; need to fill them in here.
			if (cookieName == "OLCGroup" && getCookieVal(cookieName, 'myEmail') == "") {
				f.firstName.value = "Admin";
				f.lastName.value = "User";
				f.myEmail.value = "Administrator";
			} else {
				f.firstName.value 	= getCookieVal(cookieName, 'firstName');
				f.lastName.value 	= getCookieVal(cookieName, 'lastName');
				f.myEmail.value 	= getCookieVal(cookieName, 'myEmail'); // This is the user's unique ID
			}

			f.MI.value 			= getCookieVal(cookieName, 'MI');
			f.profEmail.value 	= getCookieVal(cookieName, 'profEmail');
			f.taEmail.value 	= getCookieVal(cookieName, 'taEmail');
			f.otherEmail.value 	= getCookieVal(cookieName, 'otherEmail');
			f.myStyle.value 	= getCookieVal(cookieName, 'myStyle');
			f.profStyle.value 	= getCookieVal(cookieName, 'profStyle');
			f.taStyle.value 	= getCookieVal(cookieName, 'taStyle');
			f.otherStyle.value 	= getCookieVal(cookieName, 'otherStyle');
//			f.classroom.value	= getCookieVal(cookieName, 'classroom');
			floatNav 			= getCookieVal(cookieName, 'floatNav') ? getCookieVal(cookieName, 'floatNav') : 1;
			glideSpeed 			= getCookieVal(cookieName, 'glide') ? getCookieVal(cookieName, 'glide') : 3;
			teachersEdition		= getCookieVal(cookieName, 'isProf');
		}
	}
}


function showSMSalerts() {
	if (getQueryVal('SMS_ERRNO') > 0) {
		// there was an error; find out what it was:
		var errorMessage = "";
		if (getQueryVal('SMS_SERVICE') == "0") {
			// login
			if (getQueryVal('SMS_ERRNO') == "1") {
				stopTool();
				startTool("toolLogin");
				errorMessage = "The username and password you entered were not correct.";
			} else if (getQueryVal('SMS_ERRNO') == "2") {
				errorMessage = "The account you selected is already logged in.";
			} else if (getQueryVal('SMS_ERRNO') == "3") {
				errorMessage = "There was an unrecoverable error during login.";
			}else if (getQueryVal('SMS_ERRNO') == "4") {
				stopTool();
				startTool("toolLogin");
				errorMessage = "This username and password are not valid for the current site.";
			} else if (getQueryVal('SMS_ERRNO') == "5") {
				errorMessage = "The username doesn't match the current site.";
			}
		} else if (getQueryVal('SMS_SERVICE' == "1")) {
			// edit prefs
			if (getQueryVal('SMS_ERRNO') == "1") {
				errorMessage = "You are not logged in.";
			} else if (getQueryVal('SMS_ERRNO') == "2") {
				errorMessage = "There was an unrecoverable error while trying to save your preferences.";
			}
		}
		if (errorMessage == "") {
			errorMessage = "There was an unexpected error: SERVICE='" + getQueryVal('SMS_SERVICE') + "', ERRNO='" + getQueryVal('SMS_ERRNO') + "'.";
		}
		alert(errorMessage);
	}
}

/* 
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
   Preferences (OLC-specific)
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
*/

function updateForms() {
	/*
	Copies data into all the various forms that may be present.
	We can always depend on forms.dataContainer to be present... 
	the others may or may not be on every page.

	There are different sets of variable names here, which is messy... but it's
	easier to do this than it would be to start
	screwing with the 'mail your results' scripts.
	*/

	var g = window.document.forms.dataContainer;
	for (i=0; i<document.forms.length;i++) {
		var f = document.forms[i];

		if (f.name == "frmMail") {
			// have to use the old variable names here, for compatibility with old scripts
			if (f.txtName) {
				// changing this so it will function if any of the name fields are filled
				var mergedName = "";
				if (g.lastName.value) {
					mergedName = g.lastName.value;
				}
				if (g.MI.value) {
					mergedName = g.MI.value + " " + mergedName;
				}
				if (g.firstName.value) {
					mergedName = g.firstName.value + " " + mergedName;
				}
				f.txtName.value = mergedName;
			}
			if (f.txtMyEmailId && g.myEmail.value && (g.myEmail.value != "Administrator")) {
				f.txtMyEmailId.value = g.myEmail.value;
			}
			if (f.txtInstEmailId && g.profEmail.value) {
				f.txtInstEmailId.value = g.profEmail.value;
			}
			if (f.txtTAEmailId && g.taEmail.value) {
				f.txtTAEmailId.value = g.taEmail.value;
			}
			if (f.txtOtherEmailId && g.otherEmail.value) {
				f.txtOtherEmailId.value = g.otherEmail.value;
			}
			if (f.cboMyOption) {
				f.cboMyOption.selectedIndex = g.myStyle.value;
			}
			if (f.cboInstOption) {
				f.cboInstOption.selectedIndex = g.profStyle.value;
			}
			if (f.cboTAOption) {
				f.cboTAOption.selectedIndex = g.taStyle.value;
			}
			if (f.cboOtherOption) {
				f.cboOtherOption.selectedIndex = g.otherStyle.value;
			}

		} else if (f.name == "frmPrefs" || f.name == "frmPrefsProf") {
			/*
			if (f.firstName && g.firstName.value) {
				f.firstName.value = g.firstName.value;
			}
			if (f.MI && g.MI.value) {
				f.MI.value = g.MI.value;
			}
			if (f.lastName && g.lastName.value) {
				f.lastName.value = g.lastName.value;
			}
			if (f.my_email && g.myEmail.value) {
				f.my_email.value = g.myEmail.value;
			}
			*/
			if (f.prof_email && g.profEmail.value) {
				f.prof_email.value = g.profEmail.value;
			}
			if (f.ta_email && g.taEmail.value) {
				f.ta_email.value = g.taEmail.value;
			}
			if (f.other_email && g.otherEmail.value) {
				f.other_email.value = g.otherEmail.value;
			}
			if (f.email_style) {
				f.email_style.selectedIndex = g.myStyle.value;
			}
			if (f.prof_email_style) {
				f.prof_email_style.selectedIndex = g.profStyle.value;
			}
			if (f.ta_email_style) {
				f.ta_email_style.selectedIndex = g.taStyle.value;
			}
			if (f.other_email_style) {
				f.other_email_style.selectedIndex = g.otherStyle.value;
			}
			if (f.float_nav) {
				f.float_nav.selectedIndex = floatNav;
			}
			if (f.drawer_speed) {
				f.drawer_speed.selectedIndex = glideSpeed;
			}
//			if (f.classroom && g.classroom.value) {
//				f.classroom.value = g.classroom.value;
//			}
		} else if (f.name == "hiddenNotes") {
			if (g.myEmail.value) {
				f.user_id.value = g.myEmail.value;
			}
//			if (g.classroom.value) {
//				f.classroom.value = g.classroom.value;
//			}
		}
	}
}

/* 
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
   Quiz Mailform verifiers
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
*/

function onSurveyEmailSubmit() {
	var s1 = document.forms.frmMail.txtName.value;
	var s2 = document.forms.frmMail.txtMyEmailId.value;
	if (isEmpty(s1)) {
		alert("You must enter your name.");
		document.forms.frmMail.txtName.focus();
	} else if (!isEmail(s2)) {
		alert("You must enter a valid e-mail address.");
		document.forms.frmMail.txtMyEmailId.focus();
	} else {
		document.forms.frmMail.submit();
	}
}

function onPollEmailSubmit() {
	if (validateMailFormFields()) {
	      document.forms.frmMail.submit();
	}
}
function onMixedQuizEmailSubmit(){
	
	var mailForm = document.forms.frmMail;
	var sectionId = convertSpaces(mailForm.sectionid.value);
	var studentName = convertSpaces(mailForm.txtName.value);
	var studentEmail = mailForm.txtMyEmailId.value;
	var instructorEmail = mailForm.txtInstEmailId.value;
	var taEmail = mailForm.txtTAEmailId.value;
	var otherEmail = mailForm.txtOtherEmailId.value;
	var studentEmailFormat = mailForm.cboMyOption[mailForm.cboMyOption.selectedIndex].value;
	var instructorEmailFormat = mailForm.cboInstOption[mailForm.cboInstOption.selectedIndex].value;
	var taEmailFormat = mailForm.cboTAOption[mailForm.cboTAOption.selectedIndex].value;
	var otherEmailFormat = mailForm.cboOtherOption[mailForm.cboOtherOption.selectedIndex].value;

	//quizResults and mixedQuizResults XSL using 0 and 1 as values, convert for sending email
	//it would make more sense just to have the values "text" and html in the dropdowns
	// but that would involve changing a large number of styles so leave this
	if(studentEmailFormat == "0")
        studentEmailFormat = "text";
	else if(studentEmailFormat == "1")
        studentEmailFormat = "html";

	if(instructorEmailFormat == "0")
        instructorEmailFormat = "text";
    else if(instructorEmailFormat == "1")
        instructorEmailFormat = "html";

	if(taEmailFormat == "0")
        taEmailFormat = "text";
    else if(taEmailFormat == "1")
        taEmailFormat = "html";

	if(otherEmailFormat == "0")
        otherEmailFormat = "text";
    else if(otherEmailFormat == "1")
        otherEmailFormat = "html";

     //determine the quiz type
	var qType = 0;

	for (i=0; i<this.document.forms.length; i++) {
		var ff = this.document.forms[i];
		var eL = ff.elements.length;
		for (j=0; j<eL; j++) {
			var eN = ff.elements[j].name;
			if (eN == "TypeOfQuiz") {
				qType = ff.elements[j].value;
				break;
			}
		}
	}

	if (validateMailFormFields()){

		var URL = "/novella/MailServlet?";
		if (!isEmpty(sectionId)) URL += "sectionid="+sectionId;
		if (!isEmpty(studentName)) URL += "&studentName="+studentName;
		if (!isEmpty(studentEmail)) {URL += "&studentEmail="+studentEmail+"&studentEmailFormat="+studentEmailFormat;};
		if (!isEmpty(instructorEmail)) {URL += "&instructorEmail="+instructorEmail+"&instructorEmailFormat="+instructorEmailFormat;};
		if (!isEmpty(taEmail)) {URL += "&taEmail="+taEmail+"&taEmailFormat="+taEmailFormat;};
		if (!isEmpty(otherEmail)) {URL += "&otherEmail="+otherEmail+"&otherEmailFormat="+otherEmailFormat;};
		
		if (qType == 5) {
			mailForm.action = URL;
			mailForm.target = "_new";
			mailForm.submit();
		} else {
			window.open(URL,'popup','toolbar=no,scrollbar=no,width=300,height=100');
		}
	}
}
function onEmailSubmit(){
	
	var mailForm = document.forms.frmMail;
	var contentId = mailForm.contentid.value;
	var html = mailForm.htmlEmail.value;
	var quizType = mailForm.TypeOfQuiz.value
	var sectionId = convertSpaces(mailForm.sectionid.value);
    var studentName = convertSpaces(mailForm.txtName.value);
	var studentEmail = mailForm.txtMyEmailId.value;
	var instructorEmail = mailForm.txtInstEmailId.value;
	var taEmail = mailForm.txtTAEmailId.value;
	var otherEmail = mailForm.txtOtherEmailId.value;
	var studentEmailFormat = mailForm.cboMyOption[mailForm.cboMyOption.selectedIndex].value;
	var instructorEmailFormat = mailForm.cboInstOption[mailForm.cboInstOption.selectedIndex].value;
	var taEmailFormat = mailForm.cboTAOption[mailForm.cboTAOption.selectedIndex].value;
	var otherEmailFormat = mailForm.cboOtherOption[mailForm.cboOtherOption.selectedIndex].value;

	//quizResults and mixedQuizResults XSL using 0 and 1 as values, convert for sending email
	//it would make more sense just to have the values "text" and html in the dropdowns
	// but that would involve changing a large number of styles so leave this
	if(studentEmailFormat == "0")
        studentEmailFormat = "text";
	else if(studentEmailFormat == "1")
        studentEmailFormat = "html";

	if(instructorEmailFormat == "0")
        instructorEmailFormat = "text";
    else if(instructorEmailFormat == "1")
        instructorEmailFormat = "html";

	if(taEmailFormat == "0")
        taEmailFormat = "text";
    else if(taEmailFormat == "1")
        taEmailFormat = "html";

	if(otherEmailFormat == "0")
        otherEmailFormat = "text";
    else if(otherEmailFormat == "1")
        otherEmailFormat = "html";

     //determine the quiz type
	var qType = 0;

	for (i=0; i<this.document.forms.length; i++) {
		var ff = this.document.forms[i];
		var eL = ff.elements.length;
		for (j=0; j<eL; j++) {
			var eN = ff.elements[j].name;
			if (eN == "TypeOfQuiz") {
				qType = ff.elements[j].value;
				break;
			}
		}
	}

	if (validateMailFormFields()){

		var URL = "/novella/ClientSideResultsMailingServlet?";
		URL += "&contentid="+contentId;
		URL += "&TypeofQuiz="+quizType;
		if (!isEmpty(sectionId)) URL += "sectionid="+sectionId;
		if (!isEmpty(studentName)) URL += "&studentName="+studentName;
		if (!isEmpty(studentEmail)) {URL += "&studentEmail="+studentEmail+"&studentEmailFormat="+studentEmailFormat;};
		if (!isEmpty(instructorEmail)) {URL += "&instructorEmail="+instructorEmail+"&instructorEmailFormat="+instructorEmailFormat;};
		if (!isEmpty(taEmail)) {URL += "&taEmail="+taEmail+"&taEmailFormat="+taEmailFormat;};
		if (!isEmpty(otherEmail)) {URL += "&otherEmail="+otherEmail+"&otherEmailFormat="+otherEmailFormat;};
		if ((qType == 5) || (qType == 3) || (qType == 1)){
			mailForm.action = URL;
			mailForm.target = "_new";
			mailForm.submit();
		} else {
			window.open(URL,'popup','toolbar=no,scrollbar=no,width=300,height=100');
		}
	}
}

function validateMailFormFields() {
	var f = document.forms.frmMail;
	var strRequired = "";
	var strEmailError = "";
	var s1 = f.txtName.value;
	var s2 = f.txtMyEmailId.value;
	var s3 = f.txtInstEmailId.value;
	var s4 = f.txtTAEmailId.value;
	var s5 = f.txtOtherEmailId.value;

	if (isEmpty(s1)) {
		strRequired = strRequired + "MYNAME";
		f.txtName.focus();
	}
	else if (isEmpty(s2)) {
		strRequired = strRequired + "MYEMAILID";
		f.txtMyEmailId.focus();
	}
	else if (!isEmail(s2)) {
		strEmailError += "YOUREMAILID";
		f.txtMyEmailId.focus();
	}
	else if (!isEmpty(s3) && !isEmail(s3)) {
		strEmailError += "INSTEMAILID";
		f.txtInstEmailId.focus();
	}
	else if (!isEmpty(s4) && !isEmail(s4)) {
		strEmailError += "TAEMAILID";
		f.txtTAEmailId.focus();
	}
	else if (!isEmpty(s5) && !isEmail(s5)) {
		strEmailError += "OTHEREMAILID";
		f.txtOtherEmailId.focus();
	}
	if (!isEmpty(strRequired)) {
		alert("Please enter your name and email address.");
		return false;
	}
	else if(!isEmpty(strEmailError)) {
		alert("Please enter a correct email address.");
		return false;
	}
	else return true;
}





/* 
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
   Notes
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
*/

function ns4noteCheck(theEl) {
	// another joyous workaround for netscape four.
	if (browserIs.ns && browserIs.major == 4) {
		alert("We're sorry, but Netscape 4 does not allow highlighting text.");
		theEl.selectedIndex = 0;
	} 
}

function captureSelectedText(isOnSubmit) {
	// netscape 4 never triggers this function. (onMouseDown isn't recognized???)

	var theSelectedText = "";
	if (window.getSelection) {
		// NS 7
		theSelectedText = window.getSelection();
	} else if (document.getSelection) {
		// IE
		theSelectedText = document.getSelection();
	} else if (document.selection && document.selection.createRange) {
		// other IE
		var range = document.selection.createRange();
		theSelectedText = range.text;
	} else {
		//bad browser. No donut.
		theSelectedText = ' ';
	}

	// fill the value in, unless it was captured when the drawer was opened:
	if (isOnSubmit) {
		if (theSelectedText != '') {
			document.forms.hiddenNotes.theText.value = theSelectedText;
		}
	} else {
		document.forms.hiddenNotes.theText.value = theSelectedText;
	}
}

function submitNewNote() {
	if (getCookie("OLCGroup")) {
		// quick, dirty, and drubk
		alert("You are using a shared account, so cannot save notes.");
		stopTool();
	} else {
	
		var f = document.forms.hiddenNotes;
		
		// to save a note, must either have entered some note text, or 
		// selected a highlight color and captured some text.
		if (
			((f.theNote.value != null) && (f.theNote.value != "")) ||
			(
				((f.theHighlight.value != null) && (f.theHighlight.value != "")) &&
				((f.theText.value != null) && (f.theText.value != ""))
			)
		) {
			if (isDynamic == 1) {
				document.forms.hiddenNotes.isDynamic.value = 1;
			}
			document.forms.hiddenNotes.action="/olcweb/notes/newnote.cgi";
			document.forms.hiddenNotes.target="notePopup";
			window.open('','notePopup','toolbar=no,scrollbar=no,width=300,height=150');
			// alert(f.user_id.value);
			document.forms.hiddenNotes.submit();
			
			stopTool();
		} else {
			alert("You must either choose a highlight color and select some text to highlight, or enter some note text above.");
			return false;
		}
	}
}

function clearNotesForm(theForm) {
	// necessary to avoid NS4 layer problems:
	theForm.newnotes.value="";
	theForm.highlighter.selectedIndex=0;
//	theForm.shared.checked="false";
	return false; // don't actually want to submit this form.
}

function shareNotes(theElement) {
/*
	if (teachersEdition == 1) {
		document.forms.hiddenNotes.isShared.value = theElement.checked;
	} else {
		alert("Sorry, only instructors are allowed to share notes.");
		theElement.checked = false;
	}
*/
}

function showNotes() {
	document.forms.hiddenNotes.action="/olcweb/notes/parsepage.cgi";
	document.forms.hiddenNotes.target="_self";
	document.forms.hiddenNotes.user_id.value = window.document.forms.dataContainer.myEmail.value;
	stopTool();
	document.forms.hiddenNotes.submit();
}

function searchNotes() {
	document.forms.hiddenNotes.action="/olcweb/notes/search.cgi";
	document.forms.hiddenNotes.target="notePopup";
	document.forms.hiddenNotes.user_id.value = window.document.forms.dataContainer.myEmail.value;
	window.open('','notePopup','toolbar=no,scrollbar=yes,width=300,height=450');
	stopTool();
	document.forms.hiddenNotes.submit();
}

function removeNote(theNote) {
	if ((teachersEdition == 0) && (theNote.charAt(0) == "c")) {
		alert("Sorry, only instructors may delete shared notes.");
	} else {
		if (confirm("Are you sure you want to delete this note?")) {
			document.forms.deleteNote.thenote.value = theNote;
			window.open('','notePopup','toolbar=no,scrollbar=yes,width=300,height=150');
			document.forms.deleteNote.submit();
		}
	}
} 

function showNote(theNote) {
	var myY = (browserIs.mac && browserIs.ie) ? (mouseY-100) : mouseY ;
	var myX = (mouseX > (getWindowWidth()-200)) ? (mouseX-150) : mouseX ;
	setTop(theNote, myY);
	setLeft(theNote,myX);
	showLayer(theNote);
}

function hideNote(theNote) {
	setTop(theNote, -1000);
	hideLayer(theNote);
}


/* 
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
   Search
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
*/

function doSearch(sourceForm) {
	var f;
	
	if (sourceForm.searchType[sourceForm.searchType.selectedIndex].value == "1") {
		if (loggedIn == 1) {
			// login is now required for this.
			// Modified for Factiva search:
			f = document.forms.nlSearch;
			if (f.qr) {
				f.qr.value = sourceForm.QueryText.value;
			}
			if (f.QueryText) {
				f.QueryText.value = sourceForm.QueryText.value;
			}
		} else {
			alert("You must log in to use power search.");
			stopTool();
			startTool('toolLogin');
			return false;
		}
	} else {
		// Verity search:
		f = document.forms.veritySearch;
		// needs to differentiate between student and instructor editions.
		if (teachersEdition == 1) {
			f.SourceQueryText.value = "ISBN=" + window.document.forms.dataContainer.isbn.value.toLowerCase();
		} else {
			f.SourceQueryText.value = "ISBN=" + window.document.forms.dataContainer.isbn.value.toLowerCase() + " AND VIEWTYPE=student";
		}
		f.QueryText.value=sourceForm.QueryText.value;
	}

	if (sourceForm.QueryText.value != "") {
		f.submit();  
		stopTool();
	} else {
		alert("Please enter some text to search for.");
		if (document.forms.frmSearch) {
			document.forms.frmSearch.QueryText.focus();
		}
	}
	return false;
}



/* 
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
	MathML
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
*/

function URLEncode(toEncode ){
        // The Javascript escape and unescape functions do not correspond
        // with what browsers actually do...
        var SAFECHARS = "0123456789" +                               // Numeric
                                      "ABCDEFGHIJKLMNOPQRSTUVWXYZ" + // Alphabetic
                                      "abcdefghijklmnopqrstuvwxyz" +
                                      "-_.!~*'()";                                  // RFC2396 Mark characters
        var HEX = "0123456789ABCDEF";
        var plaintext = toEncode;
        var encoded = "";
        for (var i = 0; i < plaintext.length; i++ ) {
               var ch = plaintext.charAt(i);
            if (ch == " ") {
                   encoded += "+";                           // x-www-urlencoded, rather than %20
               } else if (SAFECHARS.indexOf(ch) != -1) {
                   encoded += ch;
               } else {
                   var charCode = ch.charCodeAt(0);
                       if (charCode > 255) {
                           alert( "Unicode Character '"
                        + ch
                        + "' cannot be encoded using standard URL encoding.\n" +
                                         "(URL encoding only supports 8-bit characters.)\n" +
                                                "A space (+) will be substituted." );
                               encoded += "+";
                       } else {
                               encoded += "%";
                               encoded += HEX.charAt((charCode >> 4) & 0xF);
                               encoded += HEX.charAt(charCode & 0xF);
                       }
               }
        } // for

        //document.URLForm.F2.value = encoded;
        return encoded;
}