window.addEvent('domready', function() {
	
	/* ----------Config Vars----------- */
		
	var slideTimer = 3000;  //time between slides (1 second = 1000), a.k.a. the interval duration
	var transitionTime = 1000; //transition time (1 second = 1000)
	var items = $$('.slide_item');  //Get array of elements for sliding
	
	/* --------end config vars-------- */
	
	//Setup positions
	items.each(function(element, index) {
		
		//since the viewer obviously has javascript on, we can remove the 'first_item' class
		if(index == 0){
			element.removeClass('first_item');
			element.setStyle('left', "0");
		}
		else{
			element.setStyle('left', "650");
			element.setStyle('opacity', "0");
		}
	});
	//end setup
	var numItems = items.length;  //get number of slider items
	var itemNum = 0;  //initialize a variable to hold the current slide index
	
	var slideIt = function(value,position){ 
	
		//get item to slide out
		var curItem = items[itemNum];  
		
		//change index
		if(itemNum < (numItems - 1)){
			itemNum++; 
		}
		else{
			itemNum = 0;
		}
		
		//now get item to slide in using new index
		var newItem = items[itemNum];
		
		//set up our animation stylings for out and in motions (note:  Fx.Styles does NOT exist in moo 1.2, so we must use Fx.Morph or Fx.Tween)
		var item_in = new Fx.Styles(newItem, {
			     duration: transitionTime, 
			     transition: Fx.Transitions.Quad.easeInOut, 
			     wait:false
		});
		
		var item_out = new Fx.Styles(curItem, {
			     duration: transitionTime, 
			     transition: Fx.Transitions.Quad.easeInOut, 
			     wait:false
		});
		
		curItem.addEvent('mouseenter',function(e){
			
		});
		
		//we will set a beginning value here
		//this is so that it gives the illusion of continuous motion from one direction, even after the first cycle of items
		if(position =='right'){
			item_in.start({
				'left': [-650, 0],
				'opacity':[1,1]
				});
			item_out.start({
				'left':'650',
				'opacity':[1]
				});
		}else{
			item_in.start({
				'left': [650, 0],
				'opacity':[1,1]
				});
			item_out.start({
				'left': '-650',
				'opacity':[1]
				});
		}
		
		
		//no beginning values needed, since we always want to push the old item out to the left
		
		
	};
	//call the function, periodically  (note: the interval period is defined at the top of this file)
	$('moveleft').addEvent('click',function(){
		slideIt('650','left');
	});
	$('moveright').addEvent('click',function(){
		slideIt('650','right');
	});
	
	
	
	
	
	
});
  //initialize a variable to hold the current slide index