$(document).ready(function() {
    
        //rotation speed and timer
        var speed = 5000;
        var run = setInterval('rotate()', speed);	
        
        //grab the width and calculate left value
        var item_width = $('#slides li').outerWidth(); 
        var left_value = item_width * (-1); 
            
        //move the last item before first item, just in case user click prev button
        $('#slides li:first').before($('#slides li:last'));
        
        //set the default item to the correct position 
        $('#slides ul').css({'left' : left_value});
    
        //if user clicked on prev button
        $('#prev').click(function() {
    
            //get the right position            
            var left_indent = parseInt($('#slides ul').css('left')) + item_width;
    
            //slide the item            
            $('#slides ul:not(:animated)').animate({'left' : left_indent}, 'slow',function(){    
    
                //move the last item and put it as first item            	
                $('#slides li:first').before($('#slides li:last'));           
    
                //set the default item to correct position
                $('#slides ul').css({'left' : left_value});
            
            });
    
            //cancel the link behavior            
            return false;
                
        });
    
     
        //if user clicked on next button
        $('#next').click(function() {
            
            //get the right position
            var left_indent = parseInt($('#slides ul').css('left')) - item_width;
            
            //slide the item
            $('#slides ul:not(:animated)').animate({'left' : left_indent}, 'slow', function () {
                
                //move the first item and put it as last item
                $('#slides li:last').after($('#slides li:first'));                 	
                
                //set the default item to correct position
                $('#slides ul').css({'left' : left_value});
            
            });
                     
            //cancel the link behavior
            return false;
            
        });        
        
        //if mouse hover, pause the auto rotation, otherwise rotate it
        $('#slides').hover(
            
            function() {
                clearInterval(run);
            }, 
            function() {
                run = setInterval('rotate()', speed);	
            }
        ); 
            
    });
    
    //a simple function to click next link
    //a timer will call this function, and the rotation will begin :)  
    function rotate() {
        $('#next').click();
    }


		$(document).ready(function(){
			$("a[rel^='prettyPhoto']").prettyPhoto();
		});


		function launch_popup(url, width, height){
	//var top=(screen.height-height)/2;
	var top = 0;
	//var left=(screen.width-width)/2;	
	var left = 0;
	window.open(url,'sas','top='+top+',left='+left+',toolbar=0,location=0,directories=0,menuBar=0,scrollbars=0,resizable=0,width='+width+',height='+height);
}