function rollOver(imgId,imgSrc) {	
	var rollImg = document.getElementById(imgId);
	rollImg.src = imgSrc;
}

function show(obj,disp) {
	var theObj = document.getElementById(obj);
	if(arguments.length != show.length) {
		theObj.style.visibility = 'visible';
	} else {
		theObj.style.display = disp;
	} 
}

function hide(obj,disp) {
	var theObj = document.getElementById(obj);
	if (disp) {
		theObj.style.display = 'none';
	} else {
		theObj.style.visibility = 'hidden';
	}
}

function showOrHide(obj) {
	var theObj = document.getElementById(obj);
	if(theObj.style.visibility=='visible') {
		theObj.style.visibility = 'hidden';
	} else {
		theObj.style.visibility = 'visible';
	}
}

var myimages=new Array()
function preloadImages(){
	for (i=0;i<preloadImages.arguments.length;i++){
	myimages[i]=new Image();
	myimages[i].src=preloadImages.arguments[i];
	}
}

function openPopUp(popUrl,popWidth,popHeight) {
	window.open(popUrl,'dmpopup','location=no,scrollbars=yes,width=' + popWidth + ',height=' + popHeight + ',menubar=yes,toolbar=no');
}

function poppedUp(popWidth,popHeight) {
	if (popWidth && popHeight) {
		window.resizeTo(popWidth,popHeight);
	}
	window.focus();
}

function setCookie(name,value) {
	document.cookie = name + '=' +escape(value) + ';path=/;';
}

function getCookie(name) {
	var start = document.cookie.indexOf( name + '=' );
	var len = start + name.length + 1;
	if ((!start) && (name != document.cookie.substring(0,name.length ))) {
		return null;
	}
	if (start==-1) return null;
	var end = document.cookie.indexOf(';',len);
	if (end==-1) end=document.cookie.length;
	return unescape(document.cookie.substring(len,end));
}