var gesetzt=false;



function remove_preload_header(){
	for ( var i = 1; i <= 8; i++) {
		$("#bild_header"+i).removeClass('preload');
	}
}

	function findPosX(obj)
	{
	    var curleft = 0;
	    if(obj.offsetParent)
	        while(1) 
	        {
	          curleft += obj.offsetLeft;
	          if(!obj.offsetParent)
	            break;
	          obj = obj.offsetParent;
	        }
	    else if(obj.x)
	        curleft += obj.x;
	    return curleft;
	}

	function findPosY(obj)
	{
	    var curtop = 0;
	    if(obj.offsetParent)
	        while(1)
	        {
	          curtop += obj.offsetTop;
	          if(!obj.offsetParent)
	            break;
	          obj = obj.offsetParent;
	        }
	    else if(obj.y)
	        curtop += obj.y;
	    return curtop;
	}

	  function str_replace(search, replace, subject) {
		    return subject.split(search).join(replace);
		}

	
	
	  function showMenu(obj,idname){

		  
		  	aktivesfenster=Number(idname);
	  	
		  	// hide other menus
		  	var tar="";
			for(var i=1; i<=4; i++) {
	
		    	if(Number(idname)!=i){
			    	tar=$('#popup_menu'+String(i));
			    	tar.hide();
		    	}
			}

		    
		    
		  	//var x = findPosX(obj);
		  	//var y = findPosY(obj);
			//var x = findPosX($('#menu' + idname));
			//var y = findPosY($('#menu' + idname));
			var x = findPosX(document.getElementById("menu"+idname));
			var y = findPosY(document.getElementById("menu"+idname));
			
		    var target=$("#popup_menu" + idname);

		    var menu_titel=$('#menu_titel_' + idname);
		    var menu_img=$('#menu' + idname);
		    
		    //menu_titel
		    target.show();
		    y=y-8;
		    
		    var offset= menu_titel.css("width");
		    offset = str_replace("px","",offset);
		    
		    var menu_img_offset= menu_img.css("width");
		    menu_img_offset = str_replace("px","",menu_img_offset);
		    
		    x=x-10;//(offset/2)+(menu_img_offset/2);
		    
//		    if(idname=='2')
//		    	x=x-(offset/2)+(menu_img_offset/2)-1;
//		    else
//		    	x=x-(offset/2)+(menu_img_offset/2);
		    target.css("top",y + 'px');
		    target.css("left",x + 'px');
		    
		    $('#popup_menu' + idname).bind('click', function() {
				    var target=$("#popup_menu" + idname);
				    target.hide();
		    	});

		  }
		  
		  function closeAll(){
		  	var tar="";
		  	
		  	//if(gesetzt==true){
				for(var i=1; i<=4; i++) {
			
				    	tar=$('#popup_menu'+String(i));
				    	tar.hide();
				}
				//gesetzt=false;
		  	//}
		  }

		  

		  
		  function hover_without(img,obj){
			  obj.src='img/' + img;
			  closeAll();
		  }
		  function hoverout_without(img,obj){
			  obj.src='img/' + img;
			  closeAll();
		  }  
		  
		  function hover_without2(img,obj){
			  obj.src=img;
			  closeAll();
		  }
		  function hoverout_without2(img,obj){
			  obj.src=img;
			  closeAll();
		  }  	  
		  
  function header_slideshow() {
	  remove_preload_header();  
	  	var $alt = $('#bilderstapel_header img.obersteebene');
	    var $neu = $alt.next().length ? $alt.next() : $('#bilderstapel_header img:first');
	    $alt.addClass('mittlereebene');
		$alt.removeClass('obersteebene');
	    $neu.css({opacity: 0.0});
	    $neu.addClass('obersteebene');

		
	    $neu.animate({opacity: 1.0}, 500, function() {
	            $alt.removeClass('mittlereebene');
	    });
	}		  
  
  $(document).ready(function() {
		setInterval( "header_slideshow()", 5000 );
		var w_w = (document.body.clientWidth - 960)/2 -70 ;
		if(w_w < 0) w_w = 0;
		$('.container_16:not(.footer)').append('<a id="button" href="http://www.lagoa-berlin.de"></a>');
		$('#button').css("left",w_w+"px");
		$(window).resize(function(){
			var w_w = (document.body.clientWidth - 960)/2 -70;
			if(w_w < 0) w_w = 0;
			$('#button').css("left",w_w+"px");
		});
	});