function showSlide1(){
	document.getElementById('slide1').style.display="block";
	document.getElementById('slide2').style.display="none";		
	document.getElementById('slide3').style.display="none";	
	document.getElementById("li-slide-1").setAttribute("class", "liActive");		
	document.getElementById("li-slide-2").setAttribute("class", "");		
	document.getElementById("li-slide-3").setAttribute("class", "");										
	clearInterval(t);
}	
function showSlide2(){
	document.getElementById('slide1').style.display="none";
	document.getElementById('slide2').style.display="block";		
	document.getElementById('slide3').style.display="none";						
	document.getElementById("li-slide-1").setAttribute("class", "");		
	document.getElementById("li-slide-2").setAttribute("class", "liActive");		
	document.getElementById("li-slide-3").setAttribute("class", "");			
	clearInterval(t);
}	
function showSlide3(){
	document.getElementById('slide1').style.display="none";
	document.getElementById('slide2').style.display="none";		
	document.getElementById('slide3').style.display="block";			
	document.getElementById("li-slide-1").setAttribute("class", "");		
	document.getElementById("li-slide-2").setAttribute("class", "");		
	document.getElementById("li-slide-3").setAttribute("class", "liActive");					
	clearInterval(t);
}	

function changeSlider(slide){
	if (slide == 1){
		document.getElementById('slide1').style.display="block";
		document.getElementById('slide2').style.display="none";		
		document.getElementById('slide3').style.display="none";	
		document.getElementById("li-slide-1").setAttribute("class", "liActive");		
		document.getElementById("li-slide-2").setAttribute("class", "");		
		document.getElementById("li-slide-3").setAttribute("class", "");		
	}else if (slide == 2){
		document.getElementById('slide1').style.display="none";
		document.getElementById('slide2').style.display="block";		
		document.getElementById('slide3').style.display="none";						
		document.getElementById("li-slide-1").setAttribute("class", "");		
		document.getElementById("li-slide-2").setAttribute("class", "liActive");		
		document.getElementById("li-slide-3").setAttribute("class", "");		
	}else if (slide == 3){
		document.getElementById('slide1').style.display="none";
		document.getElementById('slide2').style.display="none";		
		document.getElementById('slide3').style.display="block";			
		document.getElementById("li-slide-1").setAttribute("class", "");		
		document.getElementById("li-slide-2").setAttribute("class", "");		
		document.getElementById("li-slide-3").setAttribute("class", "liActive");		
	}
}

var i =0;
function performOnLoad(){
    if (i==1){changeSlider('1');}
    if (i==2){changeSlider('2');}
    if (i==3){changeSlider('3'); i=0;}
    i++; 
}

window.onload=function(){
	performOnLoad();
	t=setInterval("performOnLoad()",8000);	
}