function remember_me_msg(state){
	
	var remember_me=document.getElementById("remember_msg");
	
	if (state){
		
		remember_me.innerHTML="Please don't use \"Remember me\" on a public computer";
		remember_me.className="alert";
		
	}else{
		
		remember_me.innerHTML="";
		remember_me.className="";	
	}	
}

function chk_login(){
	
	remember_me_msg(false);
	var values=build_form_vars("frm_login");
	
	POST("login.php", values, login_state_changed);	
}

function login_state_changed() { 
	
	if (((xmlHttp.readyState==4) || (xmlHttp.readyState=="complete")) && (xmlHttp.status==200)){

		if (xmlHttp.responseText=="OK"){

			location.href="main.php";
		
		}else{
			
			document.getElementById("login_status").innerHTML=xmlHttp.responseText;
			document.frm_login.btn_login.disabled=false;		
		}	
	}	
}