function popWindow(str,largh,alt) {
	availheight = screen.availHeight;
	availwidth = screen.availWidth;
	distleft = ((availwidth - largh) / 2);
	disttop = ((availheight -  alt) / 2);
        searchWin = window.open(str,'iped','scrollbars=yes,resizable=yes,width='+largh+',height='+alt+',left='+distleft+',top='+disttop+',status=no,location=no,toolbar=no,menubar=no');
}