function addtocookie(cid,pic,url,title){
	var canadd = true; //初始可以插入cookie信息 
	var hisart = $.cookie("hisart");
	var len = 0; 
	if(hisart){     
		hisart = eval("("+hisart+")");     
		len = hisart.length; 
	} 
	try{
		$(hisart).each(function(){ 
		      if(this.id == cid){ 
		        canadd = false; //已经存在，不能插入 
		        return false; 
		      } 
		});
	}
	catch(e){
		canadd = false;
	}
	 
	
	if(canadd==true){ 
	    var json = "["; 
	    var start = 0; 
	    if(len>4){start = 1;} 
	    for(var i=start;i<len;i++){ 
	        json = json + "{\"title\":\""+hisart[i].title+"\",\"url\":\""+hisart[i].url+"\",\"pic\":\""+hisart[i].pic+"\",\"id\":\""+hisart[i].id+"\"},"; 
	    } 
	    json = json + "{\"title\":\""+title+"\",\"url\":\""+url+"\",\"pic\":\""+pic+"\",\"id\":\""+cid+"\"}]"; 
	    $.cookie("hisart",json,{expires:30*60*60}); 
	} 
}

function removecookie(id){
	var hisart = $.cookie("hisart");
	var len = 0; 
	if(hisart){     
		hisart = eval("("+hisart+")");     
		len = hisart.length; 
	} 
	var json = "["; 
    var start = 0; 
    if(len>4){start = 1;} 
    for(var i=start;i<len;i++){ 
    	if(hisart[i].id==id){
    		continue;
    	}
        json = json + "{\"title\":\""+hisart[i].title+"\",\"url\":\""+hisart[i].url+"\",\"pic\":\""+hisart[i].pic+"\",\"id\":\""+hisart[i].id+"\"},"; 
    }
    if(json!='[' && json.length>1){
    	json = json.substring(0,json.length-1) + "]";
    }
    else{
    	json = json + ']';
    }
    $.cookie("hisart",json,{expires:30*60*60}); 
}

function removeallcookie(){
 	$.cookie("hisart","[]",{expires:30*60*60});
}

function showcomparecookie(){
	var hisart = $.cookie("hisart");
	if(hisart){   
		var json = eval("("+$.cookie("hisart")+")");     
		var list = ""; 
		if(json.length>0){  
			$.each($(".contrast"), function (k){
				for(var i=0; i<json.length;i++){    
					if($(".contrast").eq(k).attr("id")=='box'+json[i].id){
						$(".contrast").eq(k).addclass("active");
					}	
				}
			});
			for(var i=0; i<json.length;i++){     
				productids.push(json[i].id);
				list = list + "<li><a href='"+json[i].url+"' target='_blank' class='c_href'><img src='"+json[i].pic+"'/></a><h4><a href='"+json[i].url+"' target='_blank'>"+json[i].title+"</a><a href='javascript:;' class='c_delete' id='"+json[i].id+"'></a></h4></li>"; 
			}
			if(json.length<4){
				for(i=0;i<4-json.length;i++){
					list = list + "<li></li>";
				}
			}
			var $compare = "<div id='compare'><h2>客车对比<a href='javascript:;' class='c_hide'>隐藏</a></h2><ul>"+list+"</ul><div class='c_right'><a href='javascript:void(0);' onclick='javascript:compareproduct();' class='c_btn'></a><h4><a href='javascript:;' class='c_clear'>清除数据</a></h4></div></div>"
			$("body").append($compare);
				
			$("#compare").hide();
		}
	}
}


function hidetip2(){
	$('.warn2').hide();$('#mask2').hide();	
}