将div发送到另一个页面

i would like to send a div to another page actually im using javascript it work but i dont think its effecient cause it just show it it dont really send it, is there another way with ajax or jquery //my script send div:envoi to contenu.php under div:recu

function popWindow()
{
    var pop = window.open('contenu.php'); self.focus();
    if(pop.focus){ pop.focus(); }
}


function showIt() {
               var cont = self.opener.document.getElementById('Envoi').innerHTML;
               document.getElementById('recu').innerHTML = cont;
                }

As far as I'm aware, that should work, assuming the showIt function is called within the popup window, within the onload event of the page body (or at some point after the 'recu' element have been drawn).