// JavaScript Document
var XMLHttpRequestObject = false;
var ajax_post_string = "";

//Ajax初始化
if (window.XMLHttpRequest) {
	XMLHttpRequestObject = new XMLHttpRequest();
} else if (window.ActiveXObject) {
    XMLHttpRequestObject = new ActiveXObject("Microsoft.XMLHTTP");
}

//验证用户名
function checkUsername( url, targetObj ) {
	var obj = getElement( targetObj );
	if( obj.value != "" ){
		url = url + "&user_name=" + obj.value;	
		XMLHttpRequestObject.open("GET", url);
		XMLHttpRequestObject.onreadystatechange = function()
		{
			if( XMLHttpRequestObject.readyState == 4 && XMLHttpRequestObject.status == 200 ){
				var tmp = XMLHttpRequestObject.responseText;
				if( tmp == 'ok' ){
					getElement( 'frmReg' ).submit();
				}else{
					var userName		= getElement( 'user_name' );
					var errUserName		= getElement( 'err_user_name' );
					showErrMsg( errUserName, 5, 'txtRegInfo_err' );
				}
			}
		}
		XMLHttpRequestObject.send(null);		
	}
}

//收藏夹
function addFavorite( productId ){
	url		= arrLink[6] + "&product_id=" + productId;
	XMLHttpRequestObject.open("GET", url);
	XMLHttpRequestObject.onreadystatechange = function()
	{
		if( XMLHttpRequestObject.readyState == 4 && XMLHttpRequestObject.status == 200 ){
			var tmp = XMLHttpRequestObject.responseText;
			if( tmp == 'Ok' ){
				alert( arrMsg[2] );
			}else{
				alert( arrMsg[3] );
			}
		}
	}
	XMLHttpRequestObject.send(null);
}