var popupWin;
// wit & hite will determine where the window opens on the screen
function openWin(windowURL,windowName,wit,hite,scroll) { 
	var winH = (screen.height - hite) / 2;
	var winW = (screen.width - wit) / 2;
	popupWin = window.open( windowURL, windowName, "menubar=no,status=no,toolbar=no,location=no,scrollbars="+scroll+",screenx=1,screeny=1,width=" + wit + ",height=" + hite + ",top="+winH+",left="+winW);
	popupWin.focus();
}