// JavaScript Document
// check restore password
	function kiemtra()
		{
		// kiem tra username khong trong
		if(frmrestorepass.cususer.value=="")
			{
			alert('Hay dien thong tin ten dang nhap !');
			frmrestorepass.cususer.focus();
			return false;
			}
		// kiem tra cau hoi bi mat
		if(frmrestorepass.qusid.value==0)
			{
			alert('Hay lua chon cau hoi bi mat !');
			frmrestorepass.qusid.focus();
			return false;
			}
		// kiem tra cau tra loi
		if(frmrestorepass.cusans.value=="")
			{
			alert('Hay xac nhan cau tra loi');
			frmrestorepass.cusans.focus();
			return false;
			}
		// kiem tra new pass va reg pass
			if(frmrestorepass.cuspass.value=="")
			{
			alert('Hay nhap mat khau moi');
			frmrestorepass.cuspass.focus();
			return false;
			}
			if(frmrestorepass.cusregpass.value=="")
			{
			alert('Hay xac nhan lai mat khau moi');
			frmrestorepass.cusregpass.focus();
			return false;
			}
			if(frmrestorepass.cusregpass.value!=frmrestorepass.cuspass.value)
			{
			alert('Xac nhan mat khau khong dung');
			frmrestorepass.cusregpass.select();
			return false;
			}
		}
// check contact
	function checkcontact()
		{
		// kiem tra ho ten
		conname=frmcontact.name.value;
		re_conname=/^[a-z][a-zA-Z]+$/;
		if(conname == "" || !re_conname.test(conname))
			{
			alert('Ho ten khong dung dinh dang !');
			frmcontact.name.select();
			return false;
			}
		// kiem tra ten cong ty
		concompany=frmcontact.company.value;
		re_concompany=/^[A-Za-z][A-Za-z0-9_]+$/;
		if(concompanye == "" || !re_concompany.test(concompanye))
			{
			alert('Ten cong ty khong dung dinh dang !');
			frmcontact.company.select();
			return false;
			}
		// kiem tra email
		conemail=frmcontact.email.value;
		re_conemail=/^[a-z][a-z0-9_]*@[a-z]+(\.[a-z]+)+$/;
		if(conemail == "" || !re_conemail.test(conemail))
			{
			alert('Email khong dung !');
			frmcontact.email.select();
			return false;
			}
		// kiem tra dien thoai
		conphone=frmcontact.phone.value;
		re_conphone=/^[0-9][0-9]*/;
		if(conphone == "" || !re_conphone.test(conphone))
			{
			alert('dien thoai khong dung quy tac !');
			frmcontact.phone.select();
			return false;
			}
		// kiem tra noi dung
		if(frmcontact.content.value == "")
			{
			alert('nhap noi dung lien he !');
			frmcontact.content.select();
			return false;
			}
		}