function del_links(l){
   var  carts = $.cookie('carts')
   var carts_array = carts.split(',')
   
   for (i in carts_array){
	 if(carts_array[i] == l){ 
	   carts_array[i] = '0'
	 }	
   }    
   carts = carts_array.join(',')
   $.cookie('carts', carts, { path: '/'})
}

function exist_links(l){
   var  carts = $.cookie('carts')
   var carts_array = carts.split(',')
   
   for (i in carts_array){
	 if(carts_array[i] == l){ 
	   return true
	 }	
   } 
   return false
}
function set_links(){
   var  carts = $.cookie('carts')
   var carts_array = carts.split(',')
   
   for (i in carts_array){
	 $('#a'+ carts_array[i]).addClass('a_but3_v')
	} 
}

function add_cart (l){    
   if($.cookie('carts')==null) {	 
	 $.cookie('carts', ''+l, { path: '/'})	 
   }else{
	 var  carts = $.cookie('carts')
	 if (!exist_links(l)){
		$.cookie('carts', carts+','+l, { path: '/'})
		$('#a'+l).addClass('a_but3_v')
	 }	 
   }  
 }
 
 function del_cart (){ 
  $.cookie('carts', null, { path: '/'});
 }