function confirmaEnvioAtividade(){
 return confirm("Confirmar envio das repostas? (Confirme antes de enviar)");
}

function doSubmit(fields, message){

	var fields_array = fields.split(",");
	var error = ""+message+" \n";
	var view_error = 0;
	
	for (i = 0; i < fields_array.length; i++) { 
		
		if (document.getElementById(fields_array[i]).value == "") {
			error += "* "+fields_array[i]+"\n";
			view_error = 1;
		}
	
	}
	
	if (view_error == 1) {
		window.alert(error);
		return false;
	}else {
		return true;
	}
 }
 
 function comparaSenhas(){

 	if(document.getElementById("Senha").value != document.getElementById("Confirme a Senha").value){
 		alert("As senhas precisam ser iguais!");
 		return false;
 	}
 	
 	return true;
 	
 }
 
 function popup(URL) {
  
   var width = 450;
   var height = 230;
   var left = 200;
   var top = 200;
   
   window.open(URL,'', 'width='+width+', height='+height+', top='+top+', left='+left+', scrollbars=yes, status=no, toolbar=no, location=no, directories=no, menubar=no, resizable=no, fullscreen=no');
 }
 
 function checkRadios() {
		 var el = document.forms['atividade'].elements;
		 
		 for(var i = 0 ; i < el.length ; ++i) {
		 
		  if(el[i].type == "radio") {
		   var radiogroup = el[el[i].name]; // get the whole set of radio buttons.
		   var itemchecked = false;
		   for(var j = 0 ; j < radiogroup.length ; ++j) {
		    if(radiogroup[j].checked) {
			 itemchecked = true;
			 break;
			}
		   }
		   if(!itemchecked) { 
		    alert("Por favor, responda todas as perguntas.");
		    if(el[i].focus)
		     el[i].focus();
			return false;
		   }
		  }
		 }
		 return true;
	}