var isie = navigator.appName.indexOf( "Microsoft" ) == -1 ? false : true;
NS4 = (document.layers);
IE4 = (document.all);

var _browser_name=navigator.appName.toLowerCase();
var _isMSIE=(_browser_name.indexOf('microsoft')==-1)?false:true;
var _isNS=(_browser_name.indexOf('netscape')==-1)?false:true;

var _browser_version=navigator.appVersion.toLowerCase();
var _isNS3=((_isNS)&&(_browser_version.substring(0,1)==3))?true:false;
var _isMSIE3=((_isMSIE)&&(_browser_version.substring(0,1)==3))?true:false;
var _isNS4=((_isNS)&&(_browser_version.substring(0,1)==4))?true:false;
var _isMSIE4=((_isMSIE)&&(_browser_version.substring(0,1)==4)&&(_browser_version.indexOf('msie 5')==-1))?true:false;
var _isNS5=((_isNS)&&(_browser_version.substring(0,1)==5))?true:false;
var _isMSIE5=((_isMSIE)&&((_browser_version.substring(0,1)==5)||(_browser_version.indexOf('msie 5')!=-1)))?true:false;
var _isNS6=((_isNS)&&(_browser_version.substring(0,1)==6))?true:false;

var IE                         = navigator.appName.indexOf("Microsoft") != -1;

// hilight navigation background
function hi(id){
        if(isie) {
                obj = document.all["row_"+id];
                obj.style.setAttribute("backgroundColor",colorContent,"false");
        } /*else {
                obj = eval("document.layers.content.layers.menuitem_"+id);
                if (obj)
                        obj.bgColor=colorContent;
                else { // 2. Ebene...
                        obj = eval("document.layers.content.layers.menuitem_"+id+"_1");
                        obj.bgColor=colorContent;
                        obj = eval("document.layers.content.layers.menuitem_"+id+"_2");
                        obj.bgColor=colorContent;
                }
        }*/
}

// unhilight navigation background
function low(id) {
        if(isie) {
                obj = document.all["row_"+id];
                obj.style.setAttribute("backgroundColor","","false");
        }/* else {
                obj = eval("document.layers.content.layers.menuitem_"+id);
                obj.bgColor=null;
        }*/
};