function $(objName)
{
	if (typeof objName == "string")
	{
		if (document.getElementById(objName)) {return eval('document.getElementById("'+ objName +'")');}
		else {return eval('document.all["'+ objName +'"]');}
	}
	else
		return objName;
}

function trim(s)
{
	if(s==null||s==""){return "";}
	var Str=new String(s);
	var newstr=Str.replace(/^\s*/,"");
	return(newstr.replace(/\s*$/,""));
}

// 获取地址栏里的查询字符串
function QueryString(key) 
{
	//构造参数对象并初始化 
	var name,i; 
	var str = location.search.substr(1);
	var arrtmp = str.split("&");//将各参数分离形成参数数组 
	for(i=0;i<arrtmp.length;i++)
	{ 
		var num = arrtmp[i].indexOf("="); 
		if(num>0)
		{ 
			if (arrtmp[i].substring(0,num) == key.toLowerCase()) return arrtmp[i].substr(num+1);
		} 
	} 
}

function s(obj)
{
    var url = obj.url;
    if (url == "" || url == null || url == undefined)
        url = "ProductsSearch.aspx";
        
    var kw = $("kw").value;
    if (kw == "")
        alert("请输入关键字");
    else
        location.href = url + "?kw=" + escape(kw);
}

function singlepagemenu(id)
{
    var cn = $(id).className;
    $(id).className = cn + " STYLE4";
}

var xmlhttp;
function CreateXmlHttpObj()
{
	if(window.XMLHttpRequest) xmlhttp = new XMLHttpRequest();
	else if(window.ActiveXObject)
	{
		try
		{
			xmlhttp = new ActiveXObject("MSXML2.XMLHTTP");
		}
		catch(e)
		{
			xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
}

function getSalesData(obj, showObj, pid, uid)
{
	CreateXmlHttpObj();
	xmlhttp.onreadystatechange = function()
	{
		if (xmlhttp.readyState == 4)
		{
			if (xmlhttp.status == 200)
			{
                var strhtml = xmlhttp.responseText;
				$(showObj).innerHTML = strhtml;
			}
		}
	}
	var date = new Date();
	var now = date.getHours() + date.getMinutes() + date.getSeconds();
	var url = "GetSalesData.aspx?pid="+ pid +"&uid="+ uid +"&now=" + now;
	xmlhttp.open("GET", url, true);
	xmlhttp.send(null);
}