function onPageLoad(){
	var oldCookies=getCookie("search");
	if(document.referrer != ''){
		setCookie('from',document.referrer,1,'xiaoi.com');
		if(window.location.search != ''){
			setCookie('search',window.location.search,1,'xiaoi.com');
		}
		else{
			if(oldCookies==null || oldCookies==""){
				setCookie('search','?id=other',1,'xiaoi.com');
			}
		}
	}
	else{
		setCookie('from', document.URL,1,'xiaoi.com');
		if(window.location.search != ''){
			setCookie('search',window.location.search,1,'xiaoi.com');
		}
		else{
			if(oldCookies==null || oldCookies==""){
				setCookie('search','?id=direct',1,'xiaoi.com');
			}
		}		
	}
}
function setCookie(name,value,days,domain) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/; domain="+domain;
}

function getCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function deleteCookie(name) {
	setCookie(name,"",-1);
}