前台对于cookie的操作

//获取cookie的值
function getCookie(cookieName)
{
var start = document.cookie.indexOf(cookieName + "=");
if(start == -1)
{
return "";
}
start = start + cookieName.length + 1;
var end = document.cookie.indexOf(";" , start);
if(end == -1)
{
end = document.cookie.length;
}
return document.cookie.substring(start, end);
}

function checkCookie()
{
//alert(document.cookie);
var myForm = document.memberForm;

if(getCookie("username") == "")
{
myForm.remember.checked = false;
myForm.admin.value = "<?php echo $cUserName;?>";
}
else
{
myForm.remember.checked = true;