function OpenWin( sTRURL ){
    var screen_width = screen.availWidth - 10;
    var screen_height = screen.availHeight - 30;
    sTRFeatures = "screenX=0,screenY=0,width=" + screen_width + ",height=" + screen_height +",";
    sTRFeatures += "toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes";

    windowname=window.open( sTRURL, "", sTRFeatures );
    windowname.focus();
}