var popupWin = null;
function customAlert(alertString)
	{
		alert(alertString);
	}
function PopUp(url,name,w,h)  
	{
		leftoffset = (screen.availWidth-w)/2; 
		topoffset = (screen.availHeight-h)/2; 

		features = "width=" + w + ",height=" + h; 
		features += ",left="+leftoffset+",top="+topoffset+",screenX=0,screenY=0,"; 
		features += "menubar=no,toolbar=no,location=no,resizable=yes,scrollbars=yes";
		popupWin = window.open(url,name,features ); 
		popupWin.focus();
		if (popupWin.opener == null) popupWin.opener = self;
	}
	


function eradic8(){if (popupWin != null && popupWin.open) popupWin.close();}