function changeBg(layer, color)
{
	layer.style.backgroundImage = "none";
	layer.style.backgroundColor = color;
}

var switch_imageId=new Array("#bild1","#bild2","#bild3","#bild4");
var switch_currentId = 0;

$(window).load(function () {

	 $('#bild2').css("visibility","visible");
	 $('#bild3').css("visibility","visible");
	 $('#bild4').css("visibility","visible");

	$(document).everyTime("7s", 
	function(i) {
  		 switchImages();
	}, 0);



});

function switchImages()
{
	
	$(switch_imageId[switch_currentId]).fadeOut(2000);
	
	if(switch_currentId == switch_imageId.length-1)
		switch_currentId = 0;
	else
		switch_currentId++;
		
	$(switch_imageId[switch_currentId]).fadeIn(2000);

}