function veri(){
		var t1 = document.f1.t1.value;	
		var t2 = document.f1.t2.value;	
		
		var msg = $.ajax({
	   type: "POST",
	   url: "inscr.php",
	   cache: false,
	   data: "email="+t2,
	   async: false,

	   success: function(msg){
		 return msg;
	   }
	 }).responseText;	
		
		
		if (t1 =="" || t2 =="" ){
			document.getElementById('error').innerHTML ='<font color="red">Merci de remplire tous les champs</font>';
			return false;
		}
		else if (t2.search(/^[_a-z0-9-]+(.[_a-z0-9-]+)*[^._-]@[a-z0-9-]+(.[a-z0-9]{2,4})*$/) == -1){
			document.getElementById('error').innerHTML ='<font color="red">Email invalide</font>';
			return false;
		}
		else if ($.trim(msg) == 1){
			document.getElementById('error').innerHTML ='<font color="red">Email deja pris</font>';
			return false;
		}
		
		else { document.getElementById('error').innerHTML = ''; return true; }
	}