window.onload = function () {
		w_set_height();
	}
	
	window.onresize = function () {
		w_set_height();
	}
	
	function getWindowHeight(win)
	{
   		if (win == undefined)
   	    	win = window;
    	if (win.innerHeight) {
        	return win.innerHeight;
    	} else {
        	if (win.document.documentElement && win.document.documentElement.clientHeight) 
        	{
            	return win.document.documentElement.clientHeight;
        	}
        	return win.document.body.offsetHeight;
    	}
	}
	
	function getWindowWeite(win)
	{
   		if (win == undefined)
   	    	win = window;
    	if (win.innerWidth) {
        	return win.innerWidth;
    	} else {
        	if (win.document.documentElement && win.document.documentElement.clientWidth) 
        	{
            	return win.document.documentElement.clientWidth;
        	}
        	return win.document.body.offsetWidth;
    	}
	
	}
	
	
	function w_set_height () {
		
		var c_height;
		var c_width;
		
		var neu_links;
		
		if (navigator.appVersion.substring(17, 25) == "MSIE 6.0")
		{
			c_height = getWindowHeight();
			c_width = getWindowWeite();
		
			neu_links = (c_width / 2) - 350;
		
			//alert(neu_links);
		
			document.getElementById("mitte").style.left = (neu_links - 15) + 'px';
			document.getElementById("mitte_innen").style.left = neu_links + 'px';
		}
		
	
	}



	// siehe: http://docs.jquery.com/Using_jQuery_with_Other_Libraries
	jQuery.noConflict();
	
	/* beim kompletten laden des dokumentes */
	
	jQuery(document).ready(function ($){
		
		$('#mitte').hide();
		$('#mitte_innen').hide();
		
		$('#mitte').slideDown('slow', function() {
		
			$('#mitte_innen').fadeIn('slow');
			
		});
		
		
		$('ul.unternavigation').hide();

		
		$("#navigation").find("li.no_submenu").mouseover( function() {
		
			var submenu = $(this).find("ul.unternavigation");
			
			
			
			if ((submenu.css('display') != "block") && ($(this).parent().attr('class') != 'unternavigation'))
			{
				var alle_umenus = $("#navigation").find("ul.unternavigation");
				
				alle_umenus.each( function() {
						
					if ($(this).css("display") == "block")
					{	
						$(this).slideUp();
					
					}
				});
			}
			
			
			
			
			if (submenu.css("display") != "block")
			{
				submenu.slideDown();
			}	
			
			return true;
		
		});
		
		$("#navigation").find("li.act").mouseover( function() {
		
			var submenu = $(this).find("ul.unternavigation");
			
			//alert($(this).parent().attr('class'));
			
			if ((submenu.css('display') != "block") && ($(this).parent().attr('class') != 'unternavigation'))
			{
			
				var alle_umenus = $("#navigation").find("ul.unternavigation");
			
				alle_umenus.each( function() {
			
					if ($(this).css("display") == "block")
					{	
						$(this).slideUp();
					
					}
				});
				
			}
			
			if (submenu.css("display") != "block")
			{
				submenu.slideDown();
			}	
			
			return true;
		
		});
		
		$("#navigation").find("li.act_submenu").mouseover( function() {
		
			var submenu = $(this).find("ul.unternavigation");
			
			if ((submenu.css('display') != "block") && ($(this).parent().attr('class') != 'unternavigation'))
			{
			
				var alle_umenus = $("#navigation").find("ul.unternavigation");
			
				alle_umenus.each( function() {
			
					if ($(this).css("display") == "block")
					{	
						$(this).slideUp();
					
					}
				});
			}
						
			if (submenu.css("display") != "block")
			{
				submenu.slideDown();
			}	
			
			return true;
		
		});
		
		
		$("#navigation").find("li.no").mouseover( function() {
		
			var alle_umenus = $("#navigation").find("ul.unternavigation");
			
			/* wenn der link nicht innerhalb eines untermenues ist /*
			/* ansonsten wird das menu hochgefahren und ist bei dem neuladen der seite wieder da */
			
			//alert($(this).parent().parent().attr("class"));
			
			if (($(this).parent().parent().attr("class") != "act_submenu") && ($(this).parent().parent().attr("class") != "no_submenu") && ($(this).parent().parent().attr("class") != "act"))
			{ 
				alle_umenus.each( function() {
			
					if ($(this).css("display") == "block")
					{	
						$(this).slideUp();
				
					}
				});
			}
			
		
		});
		
		
		/* wenn man ueber den inhalt faehrt und das untermenu noch ausgeklappt ist, dieses einklappen */
		$('#inhalt').mouseover (function() {
		
			var alle_umenus = $("#navigation").find("ul.unternavigation");
			
			alle_umenus.each( function() {
			
				if ($(this).css("display") == "block")
				{	
					$(this).slideUp();
			
				}
			});
			
		});
		
		
	
	});