function login(){
		var frm = document.frmLogin;
		var strError = '';
		var objCheck = new check("frmLogin");
		
		objCheck.checkString("txtUserName", "usuario", 3, 20, false);
		objCheck.checkString("txtPassword", "contraseņa", 3, 15, false);
		
		
		strError = objCheck.toString();
		
		if (strError == "") {	
			document.getElementById("divLogin").style.display = "none";
			document.getElementById("divLoginAjax").style.display = "block";
			simple_ajax("ajaxLogin.asp", "POST", "txtUserName="+trim(frm.txtUserName.value)+"&txtPassword="+trim(frm.txtPassword.value));
			return false;
		}
		else {
			alert (strError);
			return false;
		}
}