function Slider(s_handler)
{
	this.slider_handler = s_handler;
	this.z_index_slider = 1;
	this.slider_i = 0;
	this.slider_size = 3;
	this.animation_time = 3000;
	this.firstTime = true;
}

Slider.prototype.slide = function()
{
	
	if(this.firstTime)
	{
		this.firstTime = false;
		setTimeout(function(thisObj) { thisObj.slide(); }, 3000, this);
	}
	else
	{
		if((this.slider_i+1) == this.slider_size)
		{
			
			jQuery(this.slider_handler+' li:eq('+(this.slider_i)+')').animate({opacity:0},this.animation_time);
			jQuery(this.slider_handler+' li:eq(0)').animate({opacity:1},this.animation_time);
			this.slider_i = 0;
		}else {
			jQuery(this.slider_handler+' li:eq('+this.slider_i+')').animate({opacity:0},this.animation_time);
			jQuery(this.slider_handler+' li:eq('+(this.slider_i+1)+')').animate({opacity:1},this.animation_time);
			this.slider_i++;
		}
		setTimeout(function(thisObj) { thisObj.slide(); }, 8000, this);
	}
};

jQuery(document).ready(function($){
       // your $ based code here will work fine

	if(jQuery('#slider').length > 0)
	{
		var buehne = new Slider('#slider');
		buehne.slide();	
	}
	if(jQuery('#sponsoren ul#sponsor-list').length > 0)
	{
		var sponsorenSlide = new Slider('#sponsoren ul#sponsor-list');
		sponsorenSlide.slider_size = 2;
		sponsorenSlide.slide();
		
	}
});