// JavaScript Document
// jon ward
// phosphor essence 2008


$(document).ready(function(){
				
	var slideNum = 0, nextSlide = 0, slideWait = 3000, pause=true, pause;
	var NoOfSlides = $('#slideshow li').length;	
	$('#slideshow li:not(:first)').hide();
   
   if (NoOfSlides>1){
		pageTurner = setInterval(slideShow,slideWait); // main routine for animating - simple Interval statement
   }
    
   function slideShow()
   {
		 slideNum = (slideNum+1) % NoOfSlides; // when its hit the limit it reverts to 0
		 changeSlides(slideNum);
   }
   
   function changeSlides(e) {
		 
		 $('#slideshow li:visible').fadeOut('slow');
		 $('#slideshow li:eq('+e+')').fadeIn('fast');
		 
   }
											
   $('#slideshow a.prev').click(function(){																			
		// go to previous slide
		clearInterval(pageTurner);
		pause=false;
		slideNum = slideNum-1;
		if(slideNum<0){slideNum=NoOfSlides-1};
		changeSlides(slideNum);					
		return false;
	});
	
	$('#slideshow a.pause').click(function(){																							
	  if (!pause){
		clearInterval(pageTurner);
		pause=true;
	  } else {
		clearInterval(pageTurner); 
		pageTurner = setInterval(slideShow,slideWait);
		pause=false;
	  }
	  return false;
	});		

	$('#slideshow a.next').click(function(){																			
	  // go to next slide
		clearInterval(pageTurner);
		pause=false;
		slideNum = slideNum+1;
		if(slideNum>NoOfSlides-1){slideNum=0};
		changeSlides(slideNum);
		return false;
	});		  
                              
						
						   
});