cookie设置、获取与删除.js

function setCookie(name, value, iDay)
{
	var oDate=new Date();
	oDate.setDate(oDate.getDate()+iDay);
	
	document.cookie=name+'='+value+';expires='+oDate;
}

function getCookie(name)
{
	var arr=document.cookie.split('; ');
	
	for(var i=0;i<arr.length;i++)
	{
		var arr2=arr[i].split('=');
		
		if(arr2[0]==name)
		{
			return arr2[1];
		}
	}
	
	return '';
}

function removeCookie(name)
{
	setCookie(name, 1, -1);
}