Poke project
HTML
<input type="text" id="poke" value="hola mundo 1">
<input type="button" value="Click here" id="button">
JavaScript
(function(doc){
var felipe = doc.getElementById('poke');
var benjy = doc.getElementById('button');
benjy.onclick = function(){
var felipe_value = felipe.value;
alert('Mensaje: '+felipe_value);
felipe.value = "";
};
})(document);