function check(){
	var userName = document.loginForm.username.value;
	var pwd = document.loginForm.password.value;
	var checkNumber = document.loginForm.checknumber.value;
	if (userName == "" )
	{
		alert("请输入用户名！");
		document.loginForm.username.focus();
		return false;
	}
	if (pwd == "")
	{
		alert("请输入密码！");
		document.loginForm.password.focus();
		return false;
	}
	if (checkNumber == "" ){
		alert("请输入验证码！");
		document.loginForm.checknumber.focus();
		return false;
	}
	if (!checkNumber.match(/^\d{4}$/)){
		alert("验证码为四位数字！");
		document.loginForm.checknumber.value = "";
		document.loginForm.checknumber.focus();
		return false;
	}
	return true;
}
function getPassword(){
	leftValue = document.body.clientWidth/2 - 250;
    topValue = document.body.scrollTop+document.body.clientHeight/2 - 325;
	window.open('/static/publisher/Reg/getPasswordView.html','_blank','toolbar=no, location=no, directories=no, status=no, menubar=no,width=518,height=290,left='+leftValue+',top='+topValue);
}

function r(){
	var oImg = document.getElementById("checknumberimg");
	var url = "/static/publisher/Reg/imageCustomer.jsp?t="+Math.random();
	oImg.src = url;
	document.getElementById("checknumber").value = "";
}