function setCookie(name,value,iDay){
if(iDay){
var oDate=new Date();
oDate.setDate(oDate.getDate()+iDay);
document.cookie=''+name+'='+value+';path=/;expires='+oDate;
}else{
document.cookie=''+name+'='+value+';path=/';
}
}
function getCookie(name){
var arr=document.cookie.split('; ');
for(var i=0;i<arr.length;i++){
var arr1=arr[i].split('=');
if(name==arr1[0]){
return arr1[1];
}
}
return '';
}
function delCookie(name){
setCookie(name,'sdfsdfs',-10);
}