Cookie

[13856129385]

function getCookie(name) {
var nameEQ = name + "=";
var ca = document.cookie.split(';'); //把cookie分割成组
for(var i=0;i < ca.length;i++) {
var c = ca[i]; //取得字符串
while (c.charAt(0)==' ') { //判断一下字符串有没有前导空格
c = c.substring(1,c.length); //有的话，从第二位开始取
}
if (c.indexOf(nameEQ) == 0) { //如果含有我们要的name
return unescape(c.substring(nameEQ.length,c.length)); //解码并截取我们要值
}
}
return false;
}

//清除cookie  
function clearCookie(name) {  
 setCookie(name, "", -1);  
}  

//设置cookie  
function setCookie(name, textue, seconds) {  
 seconds = seconds || 0;   //seconds有值就直接赋值，没有为0，这个根php不一样。  
 var expires = "";  
 if (seconds != 0 ) {      //设置cookie生存时间  
 var date = new Date();  
 date.setTime(date.getTime()+(seconds*1000));  
 expires = "; expires="+date.toGMTString(); 
 }  
 document.cookie = name+"="+escape(textue)+expires+";path=/";  //转码并赋值  
}