function OpenImage(image_id, item_name, size)
{
    url = topurl+"catalogueimages/";
    url+=(item_name!="")?encodeURI(item_name)+"/":"";   
    url+=(size!="")?encodeURI(size)+"/":"";
    url+=image_id + ".html";
    wnd = window.open(url, "BigImageWindow",
     "toolbar=no,location=no,status=no,menubar=yes,scrollbars=no,resizable=yes," +
     "top=20,left=20,width=400,height=400");
    wnd.focus();
    return false;
}
function OpenUserImage(imheight, imwidth, imname)
{
    url = topurl+"UserFiles/Image/"+imname;
    wnd = window.open(url, "BigImageWindow",
     "toolbar=no,location=no,status=no,menubar=yes,scrollbars=no,resizable=yes," +
     "top=20,left=20,width="+imwidth+",height="+imheight);
    wnd.focus();
    return false;
}

function ViewInsidebases()
{
    url = topurl+"view_insidebases.html";
    wnd = window.open(url, "BigImageWindow",
        "toolbar=no,location=no,status=no,menubar=yes,scrollbars=yes,resizable=yes," +
     "top=20,left=20,width=600,height=400");
    wnd.focus();
    return false;
}