<!--

function open_window(url,w,h)
{
var left = parseInt( (document.body.clientWidth/2) - w/2 );
var window_name ="window"+Math.floor(Math.random()*100)+1;
window.open(url, window_name,"width="+w+",height="+h+",top=50%,left="+left+",resizable=no,location=no,scrollbars=no,status=no,toolbar=no,directories=no,menubar=no");
}

-->