//JavaScript Document

//Funktionen zum oeffnen und schliessen der Sidetabs
    function showIt(el){
        document.getElementById('item01').style.display = "none";
        document.getElementById('item02').style.display = "none";
        document.getElementById('item03').style.display = "none";
        document.getElementById(el).style.display = "block";
        if(el == "item03"){
            document.getElementById('item_tab_end').style.background = "url(http://weigend.com/blog/wp-content/themes/weigend_blue/images/tab_mid.gif) no-repeat top left";
            document.getElementById('item03').style.background = "transparent url(http://weigend.com/blog/wp-content/themes/weigend_blue/images/menue_body.gif) no-repeat bottom left";
        } else{
            document.getElementById('item_tab_end').style.background = "url(http://weigend.com/blog/wp-content/themes/weigend_blue/images/tab_end.gif) no-repeat top left";
            document.getElementById('item03').style.background = "#FFF";
        }
    }

//Funktion zum Erkennen von Internet Explorer
	var isNav = (navigator.appName == "Netscape");
	var isIE = (navigator.appName == "Microsoft Internet Explorer");
	var isOpera = (navigator.userAgent.indexOf("Opera") != -1);
	
	function getIEVersionNumber(){
		var ua = navigator.userAgent;
		var MSIEOffset = ua.indexOf("MSIE");
		if(MSIEOffset == -1){
			return 0;
		} else{
			return parseFloat(ua.substring(MSIEOffset+5, ua.indexOf(";",MSIEOffset)));
		}
	}
	
	function write_css(path){
		document.write('<link rel="stylesheet" href="'+ path+'/styleie.css" type="text/css" media="screen" />');
	}
	
	ie = getIEVersionNumber();
	
	f = false;
	if(ie<7 && isIE){
		f = true;
	}
	
//Marcomediafunktion zum Vorladen von Bildern
	function MM_preloadImages() { //v2.0
	  if (document.images) {
		var imgFiles = MM_preloadImages.arguments;
		if (document.preloadArray==null) document.preloadArray = new Array();
		var i = document.preloadArray.length;
		with (document) for (var j=0; j<imgFiles.length; j++) if
	(imgFiles[j].charAt(0)!="#"){
		  preloadArray[i] = new Image;
		  preloadArray[i++].src = imgFiles[j];
	  } }
	}