function makehome(urlname)
{
 if (document.all)
    {
        document.body.style.behavior='url(#default#homepage)';
  //document.body.setHomePage('http://www.weightlossbuddy.com/');
  document.body.setHomePage(urlname);
 
    }
    else if (window.sidebar)
    {
    if(window.netscape)
    {
         try
     {  
            netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");  
         }  
         catch(e)  
         {  
    alert("This action was avoid by your browser, if you want to enable this page as HOME PAGE, Please enter about:config in your address bar, And change the value of 'signed.applets.codebase_principal_support' to 'true'");  
         }
    } 
    var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components. interfaces.nsIPrefBranch);
	prefs.setCharPref('browser.startup.homepage',urlname);
 }
}