function initEventHandlers() {
var cells = document.getElementsByTagName('td');
var nbCells = cells.length;
for(var i=0; i<nbCells; ++i) {
var cell = cells.item(i);
cell.addEventListener('click',taquin,false);
}
}
window.addEventListener('load',initEventHandlers,false)
function taquin(e) {
var cell = e.target;
...
}