container_shadow = new Image();
container_shadow.src = "/i/right_shadow_full.jpg";

function navRoll(navName,navState) {
	if (document.images) {
			document.images[navName].src = eval(navState + ".src");
	}
}

var menuwidth='' //default menu width
var menubgcolor=0  //menu bgcolor
var disappeardelay=300  //menu disappear speed onMouseout (in miliseconds)
var hidemenu_onclick="yes" //hide menu when user clicks within menu?
var	current_nav = null;
/////No further editting needed

var ie4=document.all
var ns6=document.getElementById&&!document.all

//if (ie4||ns6)
//	document.write('<div id="dropmenudiv" class="" style="visibility:hidden;width:'+menuwidth+';background-color:'+menubgcolor+'" onmouseover="clearhidemenu()" onmouseout="dynamichide(event)"></div>')

function getposOffset(what, offsettype){
	var totaloffset=(offsettype=="left")? what.offsetLeft : what.offsetTop;
	var parentEl=what.offsetParent;
	while (parentEl!=null){
		totaloffset=(offsettype=="left")? totaloffset+parentEl.offsetLeft : totaloffset+parentEl.offsetTop;
		parentEl=parentEl.offsetParent;
	}
	return totaloffset;
}


function showhide(obj, e, visible, hidden, menuwidth, page){
	if (ie4||ns6)
		dropmenuobj.style.left=dropmenuobj.style.top="-500px"
		dropmenuobj.className = page
	if (menuwidth!=""){
		dropmenuobj.widthobj=dropmenuobj.style
		dropmenuobj.widthobj.width=menuwidth
	}
	if (e.type=="click" && obj.visibility==hidden || e.type=="mouseover"){
		obj.visibility=visible;
	}	
	else if (e.type=="click"){
		obj.visibility=hidden;
	}
}

function iecompattest(){
	return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}

function clearbrowseredge(obj, whichedge){
	var edgeoffset=0
	if (whichedge=="rightedge"){
		var windowedge=ie4 && !window.opera? iecompattest().scrollLeft+iecompattest().clientWidth-15 : window.pageXOffset+window.innerWidth-15

		dropmenuobj.contentmeasure=dropmenuobj.offsetWidth
		if (windowedge-dropmenuobj.x < dropmenuobj.contentmeasure)
			edgeoffset=dropmenuobj.contentmeasure-obj.offsetWidth
	}
	else{
		var topedge=ie4 && !window.opera? iecompattest().scrollTop : window.pageYOffset
		var windowedge=ie4 && !window.opera? iecompattest().scrollTop+iecompattest().clientHeight-15 : window.pageYOffset+window.innerHeight-18
		dropmenuobj.contentmeasure=dropmenuobj.offsetHeight
/*		if (windowedge-dropmenuobj.y < dropmenuobj.contentmeasure){ //move up?
			edgeoffset=dropmenuobj.contentmeasure+obj.offsetHeight
			alert("up");
			if ((dropmenuobj.y-topedge)<dropmenuobj.contentmeasure) //up no good either?
				edgeoffset=dropmenuobj.y+obj.offsetHeight-topedge
		}*/
	}
	
	return edgeoffset
}

function populatemenu(what){
	if (ie4||ns6)
		dropmenuobj=what;
}


function dropdownmenu(obj, e, menucontents, menuwidth, cnav, page){
	menucontents = document.getElementById(menucontents);
	
	if(cnav != current_nav){
		offmainnav();
		hidemenu();
	}
	
	if (window.event) event.cancelBubble=true
	else if (e.stopPropagation) e.stopPropagation()
	clearhidemenu()
	dropmenuobj=document.getElementById? document.getElementById("dropmenudiv") : dropmenudiv
	populatemenu(menucontents)

	if (ie4||ns6){
		showhide(dropmenuobj.style, e, "visible", "hidden", menuwidth, page)
		if ((cnav=="nav_health") && (page!="home")){
			dropmenuobj.x=getposOffset(obj, "left")+10}
		else{
			dropmenuobj.x=getposOffset(obj, "left")
		}
		dropmenuobj.y=getposOffset(obj, "top")
		dropmenuobj.style.left=dropmenuobj.x-clearbrowseredge(obj, "rightedge")+"px"
		dropmenuobj.style.top=dropmenuobj.y-clearbrowseredge(obj, "bottomedge")+obj.offsetHeight+"px"
	}

	current_nav = cnav;

	return clickreturnvalue()
}

function clickreturnvalue(){
	if (ie4||ns6) return false
	else return true
}

function contains_ns6(a, b) {
	while (b.parentNode)
		if ((b = b.parentNode) == a)
			return true;
	
	return false;
}

function dynamichide(e){
	if (ie4&&!dropmenuobj.contains(e.toElement))
		delayhidemenu()
	else if (ns6&&e.currentTarget!= e.relatedTarget&& !contains_ns6(e.currentTarget, e.relatedTarget))
		delayhidemenu()
}

function hidemenu(e){
	if (typeof dropmenuobj!="undefined"){
		if (ie4||ns6){
			dropmenuobj.style.visibility="hidden";
			offmainnav();
		}
	}
}

function offmainnav(){
	cnav = document.getElementById(current_nav);
	if(cnav){
		navRoll(current_nav, current_nav+'_off');
	}			
}

function delayhidemenu(){
	if (ie4||ns6)
		delayhide=setTimeout("hidemenu()",disappeardelay)
}

function clearhidemenu(){
	if (typeof delayhide!="undefined")
		clearTimeout(delayhide)
}

if (hidemenu_onclick=="yes")
document.onclick=hidemenu

function subnavRoll(navName) {
	document.getElementById(navName).className="selected";
}

function subnavRollOut(navName) {
	document.getElementById(navName).className="subnav";
}


util_home_on=new Image();
util_home_on.src="/i/util_home_over.jpg";
util_home_off=new Image();
util_home_off.src="/i/util_home_off.jpg";

util_rfcom_on=new Image();
util_rfcom_on.src="/i/util_rfcom_over.jpg";
util_rfcom_off=new Image();
util_rfcom_off.src="/i/util_rfcom_off.jpg";

util_news_on=new Image();
util_news_on.src="/i/util_news_over.jpg";
util_news_off=new Image();
util_news_off.src="/i/util_news_off.jpg";

util_careers_on=new Image();
util_careers_on.src="/i/util_careers_over.jpg";
util_careers_off=new Image();
util_careers_off.src="/i/util_careers_off.jpg";

util_contact_on=new Image();
util_contact_on.src="/i/util_contact_over.jpg";
util_contact_off=new Image();
util_contact_off.src="/i/util_contact_off.jpg";

util_login_on=new Image();
util_login_on.src="/i/util_login_over.jpg";
util_login_off=new Image();
util_login_off.src="/i/util_login_off.jpg";

var username_current = 'Username';

function text_QueryFieldOnFocus(fname){
  if(document.getElementById){
	field = document.getElementById(fname);
	if (fname == 'username'){
		 if(field.value == username_current){
         	field.value=''; 
         }
	}
  }
}

function text_QueryFieldOnBlur(fname) {
if (document.getElementById) {
	field = document.getElementById(fname);
	if (fname == 'username') {
    	if (field.value=='') {
    		field.value= username_current;
        }
	}
  }
}


// Urchin tracking code for documents and external links

function setupUrchinTracking() {
	var links       = document.getElementsByTagName('a');
	var track_files = new Array('.pdf', '.doc', '.PDF', '.DOC');

	var setup_link;
	for (var i = links.length; i != 0; i--) {
		setup_link = false;
		var a = links[i-1];
		if (!a.href) continue;
		
		// Track external links
		if(a.href.indexOf('http') != -1 &&
            a.href.indexOf(window.location.hostname) == -1){
			setup_link = true;
		}else{
			// Track documents
			for(var f = 0; f < track_files.length; f++){
				if(a.href.indexOf(track_files[f]) == (a.href.length - track_files[f].length)){
					setup_link = true;
					break;
				}
			}
		}
		
		if (setup_link){
			a.onclick = function() {
                track_url(this.href);
                return true;
            }
            
		}
	}
}

function track_url(href) {
	if(window.urchinTracker){
		urchinTracker(href);
	}
}


function getPageScroll(){
     var scrolly = typeof window.pageYOffset != 'undefined' ? window.pageYOffset : document.documentElement.scrollTop;   
     var scrollx = typeof window.pageXOffset != 'undefined' ? window.pageXOffset : document.documentElement.scrollLeft;   
	
	var arrayScroll = new Array(scrollx, scrolly);
	return arrayScroll;	
}

function getPageSize() {
	var xScroll, yScroll;

	if (window.innerHeight && window.scrollMaxY) {
		xScroll = window.innerWidth + window.scrollMaxX;
		yScroll = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}

	var windowWidth, windowHeight;

	if (self.innerHeight) {	// all except Explorer
		if(document.documentElement.clientWidth){
			windowWidth = document.documentElement.clientWidth;
		} else {
			windowWidth = self.innerWidth;
		}
		windowHeight = self.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	} else if (document.body) { // other Explorers
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}

	// for small pages with total height less then height of the viewport
	if(yScroll < windowHeight){
		pageHeight = windowHeight;
	} else {
		pageHeight = yScroll;
	}

	// for small pages with total width less then width of the viewport
	if(xScroll < windowWidth){
		pageWidth = xScroll;
	} else {
		pageWidth = windowWidth;
	}

	arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight)
	return arrayPageSize;
}


/* 
	Fix for FireFox - make site background stay on the bottom of page 
	
*/
 
function setSiteBackground(){
	var pagesize  = getPageSize();

	var fileref1=document.createElement("link");
	fileref1.setAttribute("rel", "stylesheet");
	fileref1.setAttribute("type", "text/css");
	
	if(pagesize[1] != pagesize[3]){
		fileref1.setAttribute("href", "/css/ff-with-scroll.css");
	}else{
		fileref1.setAttribute("href", "/css/ff-no-scroll.css");
	}
	document.getElementsByTagName('head')[0].appendChild(fileref1);

}


function openVideo(){
	hcontainer_left = getposOffset(document.getElementById('header'), "left");
	left_diff = (450-950) / 2 + 68;
	window.open('/flash/video/', 'video','toolbar=no, left=' + (hcontainer_left-left_diff) + ', top=100, location=no, directories=no,status=no,menubar=no,scrollbars=no,resizable=no,copyhistory=yes,width=450, height=370'); 

}