// JavaScript Document
function ShowCookie(cName) {//展示cookie中的每个键值对
	var i;
	var value = document.cookie;
	var arr1 = value.split(";");
	var sCookie = "";
	for (i = 0; i < arr1.length; i++) {
		if (value.length == 0) {
			break;
		}
		sName = strim(arr1[i].split("=")[0]);
		sValue = strim(arr1[i].split("=")[1]);
		if (sName == cName) {
			sCookie = sValue;
		}
	}
	return sCookie;
}
function strim(sT) {
	return sT.replace(/(^\s*)|(\s*$)/g, "");
}
function setcookie(cname, cvalue, cdate) {
	var expires = new Date();
	expires.setTime(expires.getTime() + cdate);
	document.cookie = cname + "=" + escape(cvalue) + ";path=/;expires=" + expires.toGMTString();
   //alert("设置了一个名为" + cname + "的cookie.值是:" + cvalue + "过期时间是:" + expires.toGMTString());
}