function Checkform()
{
	//alert(thisform.elements.length);
	if((loginform.logUserName.value=="")||(loginform.logUserName.value=="用户名..."))
	{
		alert('请输入用户名!');
		loginform.logUserName.focus();
		return;
	}
	if((loginform.logPassWord.value=="")||(loginform.logPassWord.value=="密码..."))
	{
		alert('请输入密码!');
		loginform.logPassWord.focus();
		return;
	}
	document.loginform.target="_blank";
	document.loginform.action="/user/customer/user_login.asp?Action=login";
	document.loginform.submit();
}

function SaleType(type)
{
	if(type=="0")
	{
		document.write('[供应]');
	}
	if(type=="1")
	{
		document.write('[求购]');
	}
}

var http_request=false;

function CreateHttpRequest()
{
	if(window.XMLHttpRequest){
		http_request = new XMLHttpRequest();
		if(http_rquest.overrideMimeType){
			http_request.overrideMimeType('text/html');
			}
		}
	else if(window.ActiveXObject){
		try{
			http_request = new ActiveXObject("Msxml2.XMLHTTP");
			}
		catch (e){
			try{
				http_request = new ActiveXObject("Microsoft.XMLHTTP");
				}
			catch (e) {}
			}
		}
		
	if (!http_request) {
            alert('您的浏览器不支持xmlhttp!');
            return false;
        }
}

function Getlogin(Url){
	CreateHttpRequest();
	http_request.onreadystatechange = View;
	http_request.open("GET",Url,true);
	http_request.send(null);
	}


function View(){
	if(http_request.readyState == 4){
		var htmlDocument =http_request.responseText;
		//document.getElementById("login_Info").innerHTML=htmlDocument;
		alert(htmlDocument);
		}
	}

/*
function document.onkeydown()
{
var e=event.srcElement;
if(event.keyCode==13)
{
document.getElementById("dl").click();
return false;
}
}
*/