function logincheck(form)
{
		var str
		if (form == null) return true;
		
		str = "请输入登录名!";
 		if 	(!checkString(form.elements["loginid"],str)) return false;  

		str = "请输入密码!";
		if  (!checkString(form.elements["loginpwd"],str)) return false; //密码
	return true;
}

function logincheckpwd(form)
{
		var str
		if (form == null) return true;
		
		str = "请输入登录名!";
 		if 	(!checkString(form.elements["loginid"],str)) return false;  

		str = "请输入密码!";
		if  (!checkString(form.elements["loginpwd"],str)) return false; //密码
		
		str="密码和确认密码不一致!";
		if (!(form.loginpwd.value==form.loginpwd2.value))
		{
		alert(str);
		return false;
		}		
		
	return true;
}

function lookcheck(form)
{
		var str
		if (form == null) return true;
		
		str = "请输入姓名!";
 		if 	(!checkString(form.elements["contactman"],str)) return false;  

		str = "请输入联系电话!";
		if  (!checkString(form.elements["telephone"],str)) return false; //密码
	return true;
}

//千万注意字母的大小写
function clientcheck(form)
{
		var str
		if (form == null) return true;

			str = "请输入登录名!";
 		if 	(!checkString(form.elements["loginid"],str)) return false;  

		str = "请输入密码!";
		if  (!checkString(form.elements["loginpwd"],str)) return false; 
		
		str = "请输入姓名!";
		if  (!checkString(form.elements["truename"],str)) return false; 
		
		str="密码和确认密码不一致!";
		if (!(form.loginpwd.value==form.loginpwd2.value))
		{
		alert(str);
		return false;
		}		
		str = "请至少输入一个联系方法!";
if (isEmpty(form.homephone.value)&&isEmpty(form.mt.value)&&isEmpty(form.officephone.value)&&isEmpty(form.bp.value))		
{
alert(str);
form.officephone.focus();
return false;
}
return true;

//if (!(isEmpty(form.homephone.value))||!(isEmpty(form.mt.value))||!(isEmpty(form.email.value))||!(isEmpty(form.officephone.value))||!(isEmpty(form.bp.value)))
//{
//return true;
//}
//else
//{
// alert(str);
//return false;
//}
}

function clientmodifycheck(form)
{
		var str
		if (form == null) return true;

			str = "请输入登录名!";
 		if 	(!checkString(form.elements["loginid"],str)) return false;  

		str = "请输入密码!";
		if  (!checkString(form.elements["loginpwd"],str)) return false; 
		
		str = "请输入姓名!";
		if  (!checkString(form.elements["truename"],str)) return false; 
		str="密码和确认密码不一致!";
		if (!(form.loginpwd.value==form.loginpwd2.value))
		{
		alert(str);
		return false;
		}
		str = "请至少输入一个联系方法!";
if (isEmpty(form.contact.value))		
{
alert(str);
form.contact.focus();
return false;
}
return true;
}