// fonction d'ecoute des champs de formulaire
function listen_valid_form(elt){
	Event.observe(elt, 'keydown', function(e){
											if(e.keyCode==13){
												elt.form.submit();
											}
											}, 'false');
}
function listen_valid_modal(elt){
	Event.observe(elt, 'keydown', function(e){
											if(e.keyCode==13){
												elt.value.replace(/\n/g,"");
												submit_form();
											}
											}, 'false');
}
function inject_text(input,text){
	input.value=text;
}

function ajax_submit(event)
{
    event = $(event);
    Event.stop(event);
    new Ajax.Updater('update_div', this.action, {
            method: 'post',
            parameters: this.serialize()
        });
}