function openWindow(loca, x, y, winname, cansize){


    var xOffs = 25; // default sizes 
    var yOffs = 10; // default sizes 

    if (window.screen) {
        wxWidth = (window.screen.availWidth - x);
		if (wxWidth >= 2)
		    xOffs = wxWidth/2;

        wxHeight = (window.screen.availHeight - y - 15);
		if (wxHeight >= 2)
		    yOffs = wxHeight/2;
    }

 
 
winname=window.open(loca, winname,  "menubar=0,resizable=0,scrollbars=1,status=0,location=0,directories=0,toolbar=0,width="+x+",height="+y+",screenX="+xOffs+",screenY="+yOffs+",top="+yOffs+",left="+xOffs+"'"); 
winname.focus();

 return true;
}
  
function openWindowNR(loca, x, y, winname){
 
help=window.open(loca, winname,  "menubar=0,resizable=0,scrollbars=1,status=0,location=0,directories=0,toolbar=0,width="+x+",height="+y+""); 
help.focus();

 return true;
}