HM_DOM = (document.getElementById) ? true : false; 
   		HM_NS4 = (document.layers) ? true : false; 
    		HM_IE = (document.all) ? true : false; 
   		HM_IE4 = HM_IE && !HM_DOM; 
   		HM_Mac = (navigator.appVersion.indexOf("Mac") != -1); 
  		HM_IE4M = HM_IE4 && HM_Mac; 
 		HM_Opera = (navigator.userAgent.indexOf("Opera")!=-1); 
 		HM_Konqueror = (navigator.userAgent.indexOf("Konqueror")!=-1); 
 
		HM_IsMenu = !HM_Opera && !HM_Konqueror && !HM_IE4M && (HM_DOM || HM_NS4 || HM_IE4); 
 
		HM_BrowserString = HM_NS4 ? "NS4" : HM_DOM ? "DOM" : "IE4";