function showPopOver(popOverName) {
	
		var myWidth = 0, myHeight = 0;
		if( typeof( window.innerWidth ) == 'number' ) {
			//Non-IE
			myWidth = window.innerWidth;
			myHeight = window.innerHeight;
		} else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
			//IE 6+ in 'standards compliant mode'
			myWidth = document.documentElement.clientWidth;
			myHeight = document.documentElement.clientHeight;
		} else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
				//IE 4 compatible
				myWidth = document.body.clientWidth;
				myHeight = document.body.clientHeight;
		}
		
		var leftPos = 0;
		var divs = document.getElementsByTagName('div');
		var imgs = document.getElementsByTagName('img');
		var popOver = "PopOver_" + popOverName;
		var popOverLength = popOver.length;
		var popOverFrame = popOver + "_FRAME";
		var oDiv = document.getElementById(popOverFrame);
		
		for(var i = 0; i < divs.length; i++){
			testStr=divs[i].id;
			if (testStr.substring(0, popOverLength) == popOver) {
				divs[i].style.display="block";
			}
		}
		
		for(var i = 0; i < imgs.length; i++){
			testStr=imgs[i].id;
			if (testStr.substring(0, popOverLength) == popOver) {
				imgs[i].style.display="block";
			}
		}

		oDiv.style.width = 800 + "px";
		leftPos = (myWidth - 800) / 2;
		oDiv.style.left = leftPos + "px";
		return false;
	}
	
	function hidePopOver() {
		var divs = document.getElementsByTagName('div');
		var imgs = document.getElementsByTagName('img');
		var testStr;
		
		for(var i = 0; i < divs.length; i++){
			testStr=divs[i].id;
			if (testStr.substring(0,7) == "PopOver") {
				divs[i].style.display="none";
			}
		}
		
		for(var i = 0; i < imgs.length; i++){
			testStr=imgs[i].id;
			if (testStr.substring(0,7) == "PopOver") {
				imgs[i].style.display="none";
			}
		}

		return false;
	}
	hidePopOver();