function openWin(url,wid,hgt)
{
var left = (screen.width/2)-(wid/2);
var top = (screen.height/2)-(hgt/2);
var targetWin = window.open (url, 'TEST', 'toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=no, copyhistory=no, width='+wid+', height='+hgt+', top='+top+', left='+left);
}