function openWindow(url, name, w, h) {
   var sName = navigator.appName;

  if (w == 0) {
     w = screen.availWidth;
     h = (screen.availHeight - 50);
     popupWin = window.open(url, name, "width="+w+",height="+h+",toolbar=1,menubar=1,scrollBars=1, resizable=1" );
     popupWin.moveTo(0,0);
		 if ( sName == "Netscape" ) {
    	  document.width= (w - 20);
        document.height= (h - 100);
			}	
  } else {   
	  popupWin = window.open(url, name, "width="+w+",height="+h+",toolbar=1,menubar=1,scrollBars=1, resizable=1" );
	}	
}