function changeImage(filename)
	{
	   document.mainimage.src = filename;
		if (filename=='images/tab1.jpg'){
			document.getElementById("tabs").style.backgroundPosition = '0px 15px';
			document.getElementById("tabpoza").style.backgroundImage = 'url(images/tab2.jpg)';			
			document.getElementById("href").href = 'casedemarcat.html';			
		}	   
		if (filename=='images/tab2.jpg'){
			document.getElementById("tabs").style.backgroundPosition = '0px 60px';	
			document.getElementById("tabpoza").style.backgroundImage = 'url(images/tab3.jpg)';			
			document.getElementById("href").href = 'service.html';			
		}	   
		if (filename=='images/tab3.jpg'){
			document.getElementById("tabs").style.backgroundPosition = '0px 105px';	
			document.getElementById("tabpoza").style.backgroundImage = 'url(images/tab4.jpg)';			
			document.getElementById("href").href = 'produse.html';			
		}	    
		if (filename=='images/tab4.jpg'){
			document.getElementById("tabs").style.backgroundPosition = '0px 150px';	
			document.getElementById("href").href = '';			
		}	   
	}


var c=0
var s
function photoGallery()
	{
		if (c%4==0){
		document.mainimage.src = "images/tab1.jpg";
		document.getElementById("tabs").style.backgroundPosition = '0px 15px';
			document.getElementById("tabpoza").style.backgroundImage = 'url(images/tab2.jpg)';			
			document.getElementById("href").href = 'casedemarcat.html';			
		}
		if (c%4==1){
		document.mainimage.src = "images/tab2.jpg";
		document.getElementById("tabs").style.backgroundPosition = '0px 60px';
			document.getElementById("tabpoza").style.backgroundImage = 'url(images/tab3.jpg)';			
			document.getElementById("href").href = 'service.html';			
		}
		if (c%4==2){
		document.mainimage.src = "images/tab3.jpg";
		document.getElementById("tabs").style.backgroundPosition = '0px 105px';
			document.getElementById("tabpoza").style.backgroundImage = 'url(images/tab4.jpg)';			
			document.getElementById("href").href = 'produse.html';			
		}
		if (c%4==3){
		document.mainimage.src = "images/tab4.jpg";
		document.getElementById("tabs").style.backgroundPosition = '0px 150px';
			document.getElementById("href").href = '';			
		}
		c=c+1
		s=setTimeout("photoGallery()",6000)
	}
	
function stop_tab()
	{
			clearTimeout(s);
	}