function MM_openBrWindowDinamic(theURL,winName,width,height) { //v2.0
        var scrollbars;
        var top, left;

        if (width>screen.availWidth) {
            width = screen.availWidth - 50;
        left = 10;
        scrollbars = ', scrollbars=yes';
        }
        else {
            left = screen.availWidth/2 - width/2;
        }
        if (height>screen.availHeight) {
        height = screen.availHeight - 50;
        top = 10;
        scrollbars = ', scrollbars=yes';
        }
        else {
            top = screen.availHeight/2 - height/2;
        }
        window.open(theURL, winName, 'resize=yes, menubar=no, left=' + left + ', top=' + top + scrollbars + ', width=' + width + ', height=' + height);
}