if(Util==undefined){
	var Util = {};
}

Util.Cookie = {
	get:function(v_name){//获得cookie值
		var lowerCookieName = v_name.toLowerCase();
		var cookieStr = document.cookie;
		
		if (cookieStr == ""){
			return "";
		}
		
		var cookieArr = cookieStr.split("; ");
		var pos = -1;
		
		for (var i=0; i<cookieArr.length; i++){
			pos = cookieArr[i].indexOf("=");{
				if (cookieArr[i].substring(0, pos).toLowerCase() == lowerCookieName){
					return cookieArr[i].substring(pos+1, cookieArr[i].length);
				}
			}
		}
		return "";
	},
	getVal:function(v_offset){//获得Cookie解码后的值
		var endstr = document.cookie.indexOf (";", v_offset);
		if (endstr == -1){
			endstr = document.cookie.length;
		}
		return unescape(document.cookie.substring(v_offset, endstr));		
	},
	set:function(v_name, v_value){//设定Cookie值
		//设定cookie最长时间为1周
		var expdate = new Date((new Date()).getTime()+604800000);
		var domain = "sdo.com";
		document.cookie = v_name + "=" + escape (v_value) +"; expires="+ expdate.toGMTString()+((domain == null) ? "" : ("; domain=" + domain));
	},
	setStatSession:function(v_name,v_value,domain){
		document.cookie = v_name + "=" + escape(v_value) +(domain == null?"":("; domain="+domain));
	},
	del:function(v_name){//删除cookie值
		var exp = new Date();
		exp.setTime (exp.getTime() - 1);
		var cval = Util.Cookie.get(v_name);
	
		document.cookie = v_name + "=" + cval + "; expires="+ exp.toGMTString();
	}
};