function openWindow(url, w, h, s) 
 { 
    var padding; 
    (navigator.appName == "Microsoft Internet Explorer") ? (padding = 10) : (padding = 0); 

    var screenw = screen.availWidth; 
    var screenh = screen.availHeight; 
    var winw = (w + 15 + padding); 
    var winh = (h + 15 + padding); 
    var posx = (screenw / 2) - (winw / 2); 
    var posy = (screenh / 2) - (winh / 2); 

    var mywin = window.open(url,"mywin","top="+posy+",left="+posx+",width="+winw+",height="+winh+",menubar=no,locationbar=no,statusbar=no,resizable=no,toolbar=no,dependent=yes,scrollbars="+s+""); 
    mywin.focus(); 
 } 

function Go(x)
{
 if(x == "nothing")
 {
   document.forms[0].reset();
   document.forms[0].elements[0].blur();
   return;
 }
else
 {
   this.location.href = x;
   document.forms[0].reset();
   document.forms[0].elements[0].blur();
  }
}