function enableField()
{
    document.myform.filename.disabled = false;
}

function disableField()
{
    document.myform.filename.disabled = true;
}

//function poponload(filename,posx,posy,w,h)
//{
//    testwindow= window.open (filename, "mywindow", "location=1,status=1,scrollbars=1,width="+w+",height="+h+",modal=yes");
//    testwindow.moveTo(posx,posy);
//}

function opencusWindow(url, w, h)
{
    //alert ( w );
    // If Internet explorer
    if ( window.showModalDialog )
    {
        window.showModalDialog(url, 'Modal window', 'dialogWidth:'+w+'px;dialogHeight:'+h+'px;scroll:no;dialogLeft:200;dialogTop:420;');
        //alert ( w );
        //window.moveTo( 500, 500 );
    }
    // If Mozilla
    else
    {
        alert ( w + h );
        window.open(url, 'Regular window', 'height='+h+',width='+w+',toolbar=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,modal=yes');
        window.moveTo( 200, 420 );
    }
}