/************************
	Van le 30 mai 2008
************************/


function validate_email(chaine){
	
	var apos = chaine.indexOf("@");
	var dotpos = chaine.lastIndexOf(".");
	if (apos < 1 || (dotpos - apos) < 2){
		return false;
	}
	else return true;
}


function checkNumber(evnt){
	if(evnt.keyCode == 8) return true;
	if(evnt.keyCode < 48 || evnt.keyCode > 57) evnt.returnValue = false;
	if(evnt.which < 48 || evnt.which > 57) return false;
}