function initLoadGraph()
   {
        parent.debug('entering initLoadGraph...');
        var mainArea = parent.document.getElementById("tag_div");
        var main_width, main_height;
        main_width = mainArea.clientWidth;
        main_height = mainArea.clientHeight;
        
        var url = parent.document.embeds['svg_main'].getSRC();
        var topoWidthParam = getUrlParam(url, "topoWidth");
        var topoHeightParam = getUrlParam(url, "topoHeight");
        if ( (topoWidthParam != null) && (topoWidthParam != "") 
             && (topoHeightParam != null) && (topoHeightParam != ""))
        {
            topoWidth = 
                topoWidthParam.substring(topoWidthParam.indexOf('=')+1);
            topoHeight = 
                topoHeightParam.substring(topoHeightParam.indexOf('=')+1);
            parent.setReloadFlag(false);
               parent.debug('leaving initLoadGraph');       
            return;
        }
 
        parent.setReloadFlag(true);
        parent.debug('leaving initLoadGraph');       

   }