/*
script to popup sized window in the middle of the screen
*/

function popup (file, windowname, height, width, scroll) {
	var sheight = screen.availHeight;
	var swidth = screen.availWidth;
	sheight = (sheight - height)/2;
	swidth = (swidth - width)/2;
	window.open(file, windowname, "left="+swidth+",top="+sheight+",screenX="+swidth+",screenY="+sheight+",height="+height+",width="+width+",toolbar=no,location=no,directories=no,scrollbars="+(scroll?"yes":"no")+",resizable=no");
}