var Swapcurrent = 0;
	var swappers = new Array();

	var swap_next_image = 0;

	function set_transparency(obj, n){
		obj.style.filter = 'alpha(opacity=' + n * 2 +')';
		obj.style.MozOpacity = n/50;
		obj.style.opacity = n/50;
	}

	function start_swapping(){
	
		
		
		swappers = new Array(document.getElementById('img1'), document.getElementById('img2'));
			
		for (var i=0;i<swappers.length; i++){
			swappers[i].style.position = 'absolute';
			swappers[i].style.left = '0px';
			swappers[i].style.top = '0px';
		}
		
		next_swap();
	}
	
	function next_swap(){
	
		Swapcurrent = 1-Swapcurrent;
		swappers[Swapcurrent].src = Swapimages[swap_next_image % Swapimages.length];

		swappers[0].style.zIndex =  99 + Swapcurrent;
		swappers[1].style.zIndex = 100 - Swapcurrent;
		//$('mainmenu').style.zIndex = 101;
		//$('content').style.zIndex = 102;
		//$('transparent').style.zIndex = 101;
	
		setTimeout('set_transparency(swappers[Swapcurrent], 100)', i*50);	
		for (var i=0; i<50; i++){
			op = 50 - i;
			setTimeout('set_transparency(swappers[1-Swapcurrent], ' + op + ')', i*50);
		}	
	
	
		swap_next_image++;	
		setTimeout('next_swap()', 8000);
	}