function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		nav_r2_over = newImage("/images/nav-r2-over.gif");
		nav_r3_over = newImage("/images/nav-r3-over.gif");
		nav_r4_over = newImage("/images/nav-r4-over.gif");
		nav_r5_over = newImage("/images/nav-r5-over.gif");
		nav_r6_over = newImage("/images/nav-r6-over.gif");
		nav_r7_over = newImage("/images/nav-r7-over.gif");
		nav_myAccount_over = newImage("/images/nav-myAccount-over.gif");
		nav_careerOpportunities_over = newImage("/images/nav-careerOpportunities-over.gif");
		preloadFlag = true;
	}
}

function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

// Toggle Hide/Show div

function toggle_visibility(id) {
var e = document.getElementById(id);
if(e.style.display == 'block')
e.style.display = 'none';
else
e.style.display = 'block';
}

// Hide div

function hide_visibility(id) {
for (var i = 0; i < id.length; i++) {
	var e = document.getElementById(id[i]);
e.style.display = 'none';
} 
}

// Show div

function show_visibility(id) {
for (var i = 0; i < id.length; i++) {
	var e = document.getElementById(id[i]);
e.style.display = 'inline';
}
}

function changeClass(elem, className1,className2)
{
    elem.className = (elem.className == className1)?className2:className1;
}

/* function to change a class */
function setClass(objectID,newClass) {
	var object = document.getElementById(objectID);
	if (object) {
		object.className = newClass;
	}
}