var sfile = '';

    function newwindow(tgt) { 
        sfile = 'share_rich/' + tgt + '.html';
        tgtwin = window.open(sfile,'','width=450,height=450,resizable=no,scrollbars=yes'); 
        tgtwin.focus();
    } 

    if (document.images)
        {
            compon= new Image(400,300);
            compon.src="share_rich/hd_labels.gif";
            compoff= new Image(400,300);
            compoff.src="share_rich/composite.gif";
        }
    function labelsOn(imgName, imgName2)
        {
            if (document.images)
                {
                    imgOn=eval(imgName + "on.src");
                    document[imgName].src= imgOn;
                }
        }
    function labelsOff(imgName, imgName2)
        {
            if (document.images)
                {
                    imgOff=eval(imgName + "off.src");
                    document[imgName].src= imgOff;
                }
        }