var images = [
					"/images/pic1.jpg",
					"/images/pic2.jpg",
					"/images/pic3.jpg",
					"/images/pic4.jpg",
					"/images/pic5.jpg",
					"/images/pic6.jpg",
					"/images/pic7.jpg"
				 ];
				 
	// preload images
	var pic = new Array();
	if(document.images){
		for(var i=0; i<images.length; i++){
			 pic[i] = new Image(100,25);
			 pic[i].src = images[i];  
		}
	}
			 
	var lastImage = -1;
	window.onload = slideshow;
  
  	function slideshow()
  	{
		dojo.fadeOut({node: document.getElementById('slide_show'), duration: 2000}).play();
		setTimeout('swapImage();',2000);
		setTimeout(slideshow, 10000);
  	}
  	
  	function swapImage()
  	{
  		var imageNo = lastImage;
  		while(imageNo == lastImage){
  			imageNo = Math.floor(Math.random()*images.length);
  		}	
  		lastImage = imageNo;
		var img = document.getElementById('slide_pic');
		img.src = images[imageNo];
  		dojo.fadeIn({node: document.getElementById('slide_show'), duration: 2000}).play();		  		
  	}