var popupHeight = screen.height;
var popupWidth = screen.width-30;
	
function newWindow(externURL) 
{
//alert (popupWidth);
openWindow = window.open(externURL,'extern','resizable=yes,scrollbars=yes,menubar=no,toolbar=no,location=yes,top=0,left=10,width='+popupWidth+',height='+popupHeight);
openWindow.focus();
}