text: 
  $(document).ready(function(){
    $(".contact").click(function(){
      $("#contact").show();
      $("#a_propos").hide();
    });
  
    $(".a_propos").click(function(){
      $("#a_propos").show();
      $("#contact").hide();
    });
  });
  
  
  var TxtRotate = function(el, toRotate, period) {
  this.toRotate = toRotate;
  this.el = el;
  this.loopNum = 0;
  this.period = parseInt(period, 8) || 2000;
  this.txt = '';
  this.tick();
  this.isDeleting = false;
  };
  
  TxtRotate.prototype.tick = function() {
  var i = this.loopNum % this.toRotate.length;
  var fullTxt = this.toRotate[i];
  
  if (this.isDeleting) {
  this.txt = fullTxt.substring(0, this.txt.length - 1);
  } else {
  this.txt = fullTxt.substring(0, this.txt.length + 1);
  }
  
  this.el.innerHTML = '<span class="wrap">'+this.txt+'</span>';
  
  var that = this;
  var delta = 150 - Math.random() * 100;
  
  if (this.isDeleting) { delta /= 2; }
  
  if (!this.isDeleting && this.txt === fullTxt) {
  delta = this.period;
  this.isDeleting = true;
  } else if (this.isDeleting && this.txt === '') {
  this.isDeleting = false;
  this.loopNum++;
  delta = 120;
  }
  
  setTimeout(function() {
  that.tick();
  }, delta);
  };
  
  window.onload = function() {
  var elements = document.getElementsByClassName('txt-rotate');
  for (var i=0; i<elements.length; i++) {
  var toRotate = elements[i].getAttribute('data-rotate');
  var period = elements[i].getAttribute('data-period');
  if (toRotate) {
  new TxtRotate(elements[i], JSON.parse(toRotate), period);
  }
  }
  // INJECT CSS
  var css = document.createElement("style");
  css.type = "text/css";
  css.innerHTML = ".txt-rotate > .wrap { border-right: 0.08em solid #666 }";
  document.body.appendChild(css);
  };
  