报错 避免重复

<div id="report_dialog">
            <div id="report_close"><a onClick="report_dialog_close()" href="javascript:void(0)"></a></div>
            <h3>报错</h3>
            <div class="report_con">
                <div class="report_types">
                   <a href="#" onClick="report_choice(1)">1.提示"设备上没有安装该游戏"</a> 
                   <a href="#" onClick="report_choice(2)">2.我关了游戏，退出了后台，使用存档后无效</a> 
                   <a href="#" onClick="report_choice(3)">3.iCould账号同步成功后，里面没有钱</a> 
                   <a href="#" onClick="report_choice(4)">4.Game Center账号上的存档没有钱了</a> 
                   <a href="#" onClick="report_choice(5)">5.iCould或者Game Center的密码错误</a> 
                </div>
                <div class="report_input">
                   <textarea id="report_txt"></textarea>
                </div>
            </div>
            <div class="report_btn">
               <a id="report_submit" onClick="report_submit()" href="javascript:void(0)">提交</a>
            </div>
        </div>

 JS

//报错框相关函数
var report_type = 0;
function report_dialog_show(){
	var report_str = getCookie('fengzigame_report');
	var id = $_GET['id'];
	if(report_str.search(eval("/" + id + "/g")) > 0){
		alert('你已经报过错误了！');
	}else{
		$('#report_dialog').css('display','block');	
	}
}
function report_dialog_close(){
	report_type = 0;
	$('#report_dialog .report_con .report_types a').removeClass('typechose');
	$('#report_dialog').css('display','none');
}
function report_choice(type){
	var i = type-1;
	report_type = type;
	$('#report_dialog .report_con .report_types a').removeClass('typechose');
	$('#report_dialog .report_con .report_types a:eq('+i+')').addClass('typechose');
}
function report_submit(){
	var txt = $('#report_txt').val();
	if(report_type==0){
		return false;
	}
	var report_str = getCookie('fengzigame_report');
	var id = $_GET['id'];
	report_str += ','+id;
	setCookie('fengzigame_report',report_str,'0');
	report_dialog_close();
}  

 JS

/*----COOKIE 相关----*/
//获取 cookie
function getCookie(c_name){
if (document.cookie.length>0)
  {
  c_start=document.cookie.indexOf(c_name + "=")
  if (c_start!=-1)
    { 
    c_start=c_start + c_name.length+1 
    c_end=document.cookie.indexOf(";",c_start)
    if (c_end==-1) c_end=document.cookie.length
    return unescape(document.cookie.substring(c_start,c_end))
    } 
  }
return ""
}
//设置cookie  第一个参数是保存的名字  第二个参数是值  第三个参数是保存的时间（单位小时）0为游览器关闭就消失
function setCookie(objName,objValue,objHours){//添加cookie
var str = objName + "=" + escape(objValue);
if(objHours > 0){//为0时不设定过期时间，浏览器关闭时cookie自动消失
	var date = new Date();
	var ms = objHours*3600*1000;
	date.setTime(date.getTime() + ms);
	str += "; expires=" + date.toGMTString();
}
document.cookie = str;
}
//检查cookie状态
function checkLikeStatus(tagid){
	var like_str = getCookie('ciwei_like')
	if(like_str!=null && like_str!=""){
		if(like_str.search(eval("/" + tagid + "/g")) > 0){
			return 'overlike_button';
		}else{
			return 'ilike_button';
		}
	}else{
	  return 'ilike_button';
	}
}
//删除cookie
function deleteCookie(name){
	 var date=new Date();
	 date.setTime(date.getTime()-10000);
	 document.cookie=name+"= ; expire="+date.toGMTString();
}