function detectBrowser() { 
		var BO = new Object(); 
		BO["ie"]        = false /*@cc_on || true @*/; 
		BO["ie4"]       = BO["ie"] && (document.getElementById == null); 
		BO["ie5"]       = BO["ie"] && (document.namespaces == null) && (!BO["ie4"]); 
		BO["ie6"]       = BO["ie"] && (document.implementation != null) && (document.implementation.hasFeature != null); 
		BO["ie55"]      = BO["ie"] && (document.namespaces != null) && (!BO["ie6"]); 
		/*@cc_on
		BO["ie7"]       = @_jscript_version == '5.7';
		@*/ 
		BO["ns4"]       = !BO["ie"] &&  (document.layers != null) &&  (window.confirm != null) && (document.createElement == null); 
		BO["opera"]     = (self.opera != null); 
		BO["gecko"]     = (document.getBoxObjectFor != null); 
		BO["khtml"]     = (navigator.vendor == "KDE"); 
		BO["konq"]      = ((navigator.vendor == 'KDE') || (document.childNodes) && (!document.all) && (!navigator.taintEnabled)); 
		BO["safari"]    = (document.childNodes) && (!document.all) && (!navigator.taintEnabled) && (!navigator.accentColorName); 
		BO["safari1.2"] = (parseInt(0).toFixed == null) && (BO["safari"] && (window.XMLHttpRequest != null)); 
		BO["safari2.0"] = (parseInt(0).toFixed != null) && BO["safari"] && !BO["safari1.2"]; 
		BO["safari1.1"] = BO["safari"] && !BO["safari1.2"] && !BO["safari2.0"]; 
		return BO; 
	} 
	 
	var BO = new detectBrowser(); 
	
	if (BO['ie6'] && !BO['ie7']) {
		var is_ie6 = true;
	} else {
		var is_ie6 = false;
	}
	
	function changeClassForIE() {
	
		if (is_ie6) {
			document.getElementById('topnavmenubar').className = "menubar_ie6";
			document.getElementById('topnavmenubar2').className = "menubar_ie6";
			
		}
	
	}