function doPop(divId) {

	myDiv = document.getElementById(divId);
	// Show popup now that it's positioned correctly	

	// Step 1: Calculate Screen Width
	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;
	}

	// Step 2: Calculate Browser Window Position
	var scrOfX = 0, scrOfY = 0;
	if( typeof( window.pageYOffset ) == 'number' ) {
		//Netscape compliant
		scrOfY = window.pageYOffset;
		scrOfX = window.pageXOffset;
	} else if( document.body && ( document.body.scrollLeft || document.body.scrollTop ) ) {
		//DOM compliant
		scrOfY = document.body.scrollTop;
		scrOfX = document.body.scrollLeft;
	} else if( document.documentElement && ( document.documentElement.scrollLeft || document.documentElement.scrollTop ) ) {
		//IE6 standards compliant mode
		scrOfY = document.documentElement.scrollTop;
		scrOfX = document.documentElement.scrollLeft;
	}

	// Step 3: Determine Popup Windows Width and Height
	if (myDiv.currentStyle) {
		var divWidth = myDiv.currentStyle['width'];
		var divHeight = myDiv.currentStyle['height'];
	}
	else if (window.getComputedStyle) {
		var divWidth = document.defaultView.getComputedStyle(myDiv,null).getPropertyValue('width');
		var divHeight = document.defaultView.getComputedStyle(myDiv,null).getPropertyValue('height');
	}

	// Remove px from width for math operations	(the -10 is to offset the drop shadow)

	if(divId == "error") {
		myLeft 	= (myWidth / 2) + scrOfX - (parseInt(divWidth) / 2) - 200;
		myTop 	= 420;	
	}
	else if (divId == "error2") {
		myLeft 	= (myWidth / 2) + scrOfX - (parseInt(divWidth) / 2) - 200;
		myTop 	= 190;	

	}
	
	// Assign new top and left positions to center in browser window
	if (myLeft) {
		myDiv.style.left = myLeft+'px';
		myDiv.style.top = myTop+'px';
	}
	

	myDiv.style.display = "inline";

}

function cancelPop(divId) {
	// Hides it
	document.getElementById(divId).style.display = "none";	
}