var caminho_login="";

function carrega_login(caminho){
	caminho_login=caminho;
}
function fadeIn_login(){
	document.getElementById("login_php_erro2").style.display = "none";
	$("#login_php_erro").fadeIn(2000);
}

function login(){
	jusername=document.getElementById("login_username").value;
	var vusername = jusername.search("[^0-9A-Za-z_]");
	login_js_erro="0";
		if(jusername.length < 4){ 
			login_js_erro="1";
		}
		if(vusername >= 0) {
			login_js_erro="2";
		}
	
	jpassword=document.getElementById("login_password").value;
	var vpassword = jpassword.search("[^A-Za-z_0123456789-@]");
		if(jpassword.length < 4){ 
			login_js_erro="3";           
		}
		if(vpassword >= 0) {
			login_js_erro="4";
		}
	
		a_enviar=caminho_login+"ajax_login.php?tarefa=logar&username="+jusername+"&password="+jpassword+"&login_js_erro="+login_js_erro;
		$.post(a_enviar,"",function(retorno){$("#login_php_erro").html(retorno)});

}