var items = new Array();
var index = -1;
/*items[0] = "test_1";
items[1] = "test_2";
items[2] = "test_3";
items[3] = "test_4";*/
var elem;


function changeSlides()
{
	for(i = 1; i < 100; i++)
	{
		el = i
		elem = "test_" + el
		
		if(document.getElementById(elem) != undefined)
		{
			items[i] = elem
		}
	}	
//alert(items[0])
	if (index >= 0)
	{
		$("#" + items[index]).fadeOut("slow");
	}
	
	index++;	
	if(index == items.length)
	{
		index = 0;
	}
		
	$("#" + items[index]).fadeIn("slow");
		
	setTimeout("changeSlides()", 4000);		
}