$(document).ready(function() {


allLogos = ['1.jpg', '2.jpg', '3.jpg', '4.jpg', '5.jpg','6.jpg', '7.jpg', '8.jpg', '9.jpg', '10.jpg','11.jpg', '12.jpg'];
logos = allLogos.slice(0);


var cache = [];

var args_len = allLogos.length;

for (var i = args_len; i--;){
  	var cacheImage = document.createElement('img');
  	cacheImage.src = 'images/logos/' + allLogos[i];
  	cache.push(cacheImage);
}	

  	

$('#logolink').click(function(){
	randno = Math.floor ( Math.random() * logos.length ); 

	imageURL = "url(images/logos/"+logos[randno]+")";
	$('#logo').css("background-image", imageURL); 
	
	logos.splice(randno,1);	
	
	if(logos.length == 0){
	//	alert(allLogos.length);
	
		logos = allLogos.slice(0);
	}
	
	//alert(logos.length);
	return false;
});



});