function valida_login(){	
	        if (document.getElementById('login').value == "") {
				alert("Preencha o CAMPO LOGIN!!");
				document.getElementById('login').focus();
				return false;
			}
			if (document.getElementById('senha').value ==""){
				alert("Preencha o CAMPO SENHA!!");
				document.getElementById('senha').focus();
				return false;
				}
				document.getElementById('informa').innerHTML = "Logando...";
				document.form_login.submit();
	}