// Trim des champs de forumulaire
function ITrim( chaine ){
	return (chaine.indexOf('  ')==-1)?chaine:ITrim( chaine.substring( 0 , chaine.indexOf('  ') )+chaine.substring( chaine.indexOf('  ') +1 ) )
}
function LTrim( chaine ){
	return (chaine.charAt(0)==' ')?LTrim( chaine.substring( 1 )):chaine
}
function RTrim( chaine ){
	return (chaine.charAt( chaine.length - 1 )==' ')?RTrim( chaine.substring( 0 , chaine.length - 1 )):chaine
}
function Trim( chaine ){
	return LTrim( RTrim( ITrim( chaine ) ) )
}	

// Teste si le mail a une forme correcte
function checkmail(email) {
   var reg = /^[a-z0-9._-]+@[a-z0-9.-]{2,}[.][a-z]{2,4}$/
   return (reg.exec(email)!=null)
}