// JavaScript Document

// verify required fields
function checkrequired(form) {
	var pass = true;
	for(i = 0; i < form.length; i++) {
		var tempobj = form.elements[i];
		if(tempobj.alt == "required") {
			if(tempobj.value == '') {
				pass = false;
				break;
			}
		}
	}
	if(!pass) {
		alert("Preencha os campos obrigatórios.");
		tempobj.focus(); // set focus to missing field
		return false;
	}
	else { return true; } 
}