var sb_whichStyle = "";
if(is.win){
	sb_whichStyle = (is.ns4 ) ? "global_ns4" : "global";
	sb_navStyle = (is.ns4 ) ? "nav_ns4" : "nav";
}
else if(is.mac){
	sb_whichStyle = (is.ie) ? "global_macie" : "global_macie";
	sb_navStyle = (is.ie) ? "nav_macie" : "nav_macie";
}
document.write('<link rel="stylesheet" href="/styles/' + sb_whichStyle + '.css" type="text/css">');
document.write('<link rel="stylesheet" href="/styles/' + sb_navStyle + '.css" type="text/css">');
document.close();


function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

// window pop up function
function sb_popWindow(url) {
	var optionListing = "channelmode=0,dependent=0,directories=0,fullscreen=0,location=1,menubar=1,resizable=1,scrollbars=1,status=0,toolbar=1,screenX=10,screenY=20"
	remote = window.open(url,"Popup",optionListing);
	if (remote != null)  {
		remote.focus();
	} // end if
}

function sb_popWindowLarge(url) {
	var optionListing = "HEIGHT=500,WIDTH=660,innerHeight=500,innerWidth=660,channelmode=0,dependent=0,directories=0,fullscreen=0,location=0,menubar=0,resizable=1,scrollbars=1,status=0,toolbar=0,screenX=10,screenY=20"
	remote = window.open(url,"Popup",optionListing);
	if (remote != null)  {
		remote.focus();
	} // end if
}

function sb_init(){
	sb_setNavState();
}

function sb_validateForm() { //v4.0
  	var i,p,q,nm,test,num,min,max,errors='',args=sb_validateForm.arguments;
  	for (i=0; i<(args.length-2); i+=3) { 
	
		test=args[i+2]; 
		val=MM_findObj(args[i]);
		if (val) { 
	
			var temp_nm=val.name;
			temp_nm=args[i];
			nm = eval(temp_nm+'_label'); 
		
			if ((val=val.value)!="") {
    	  		if (test.indexOf('isEmail')!=-1) { 
					p=val.indexOf('@');
					if (p<1 || p==(val.length-1)) {
						errors+='- '+nm+' '+emailError+'\n';
     				}
				} else if (test!='R') { 
					num = parseFloat(val);
       				if (isNaN(val)) {
       					errors+='- '+nm+' '+numericError+'\n';
	   				}
					if (test.indexOf('inRange') != -1) { 
						p=test.indexOf(':');
        	  			min=test.substring(8,p); 
          				max=test.substring(p+1);
         				if (num<min || max<num) {
         					errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
    					}
					} // end if in range
    			} // end if 
    		} else if (test.charAt(0) == 'R') {
    			errors += '- '+nm+' '+nullError+'.\n'; 
			} // end if value != ""
		} // end if val
  	} // end for loop
	
  	if (errors) {
  		alert(validationMessage+'\n'+errors);
	}
	
  document.MM_returnValue = (errors == '');
}


// general popup function
IE = navigator.appName=="Microsoft Internet Explorer";
NS = navigator.appName=="Netscape";
bVer = parseInt(navigator.appVersion);

var newWin=null;

function popup(loc, name, width, height) {
         var _params = 
"width="+width+",height="+height+",resizable=yes,status=no,scrollbars=auto";

         // CENTER ON BROWSERS WHICH SUPPORT JSCRIPT 1.2
         if (bVer >= 4) {
                  _left = ( (screen.width-width) >>1 );
                  _top = ( (screen.height-height) >>1 );
         } else {
                  _left = ( (800-width) >>1 );
                  _top = ( (600-height) >>1 );
         }

         if (IE) _params += ",top=" + _top + ",left=" + _left;
         else if (NS) _params += ",screenX=" + _left + ",screenY=" + _top;

         newWin = window.open(loc, name, _params);
         if ( newWin!=null && !(IE && bVer<5) )
                 newWin.focus(); // MSIE4 DOESN'T FOCUS WINDOWS
}

//query string object
function QueryString(key)
{
	var value = null;
	for (var i=0;i<QueryString.keys.length;i++)
	{
		if (QueryString.keys[i]==key)
		{
			value = QueryString.values[i];
			break;
		}
	}
	return value;
}
QueryString.keys = new Array();
QueryString.values = new Array();

//parsing function to retrive information in query string
function QueryString_Parse()
{
	var query = window.location.search.substring(1);
	var pairs = query.split("&");

	for (var i=0;i<pairs.length;i++)
	{
		var pos = pairs[i].indexOf('=');
		if (pos >= 0)
		{
			var argname = pairs[i].substring(0,pos);
			var value = pairs[i].substring(pos+1);
			QueryString.keys[QueryString.keys.length] = argname;
			QueryString.values[QueryString.values.length] = value;
		}
	}

}

var validate = false;
var questionCount;

// utility function to validate Quiz radio input
// returns true if question has been answered
function validateRadioGrp(groupNumber) {
	groupNumber = groupNumber + 0;
	var questionAnswered = false;
	var radioGrp = eval('document.forms["QuizForm"].question'+groupNumber);
	for (j=0; j < radioGrp.length; j++) {
		if (radioGrp[j].checked)
			questionAnswered = true;
	}
	return questionAnswered;
}

// directs the form action based on answers in the Quiz
function validateInput() {
	var allQuestionsAnswered = false;
	var collectContactInfo = document.forms["QuizForm"].collectContactInfo.value;
	// loop through all th questions
	for (i=0; i <= document.forms["QuizForm"].questionCount.value; i++) {
		if (validateRadioGrp(i) == false) {
			allQuestionsAnswered = false;
			break;
		} else {
			allQuestionsAnswered = true;
		}
	}
	if ((allQuestionsAnswered) && (collectContactInfo == "Yes")) {
		
		// otherwise send to re-direct servlet or results page
		// need to figure out proper page to submit to based on current URL
		var currentLocation = window.location + "";
		
		var leftIndex = currentLocation.indexOf("/quiz/") + 6;
		var rightIndex = currentLocation.indexOf(".", leftIndex);
		var DCR_name = currentLocation.slice(leftIndex, rightIndex);
		var resultsPage = "/secure/quiz/" + DCR_name + "_results.html";
		document.forms["QuizForm"].action = resultsPage;
		return true;
	}
	else if ((allQuestionsAnswered) && (collectContactInfo == "No"))
	{
		// please ensure the context name is correct
		document.forms["QuizForm"].action = "/msdezetrol/quizRedirect";
	}
	else {
		// if not all questions are answered, send page back to itself
		document.forms["QuizForm"].action = "";
	}
}

// re-selects answers that have already been filled in by the user
function populateAnswers() {
	// loop through all th questions
	for (i=0; i <= document.forms["QuizForm"].questionCount.value; i++) {
		var radioGrp = eval('document.forms["QuizForm"].question'+i);
			var theValue = QueryString("question"+i);
			if (theValue != null) {
				// populate the selected radio button
				radioGrp[theValue].checked = true;
				
			}
	}

}