function callPopup(url, name, w, h, sc, s) {
	
	var top = (screen.availHeight - h) / 2;
	var lft = (screen.availWidth - w) / 2;

	var wd = window.open(url,name,'width='+w+',height='+h+',top='+top+',left='+lft+',scrollbars='+sc+',status='+s);
		wd.focus();

}