var hand = function(str){
	document.getElementById('resp').innerHTML=str;
}
function my_check(){
	var name=document.getElementById('nom').value;
	var email=document.getElementById('email').value;
	var message=document.getElementById('commentaire').value;
	document.getElementById('resp').innerHTML='<img src="images/loader.gif">';
	var ajax = new Ajax();
	this.doGet('ajax_jo.php?action=check&name='+name+'&email='+email+'&message='+message,hand,'text');
}