//Objet AJAX ( différent IE et Firefox )

function getXhr(){
  
  if(window.XMLHttpRequest) xhr = new XMLHttpRequest(); 
  
  else if(window.ActiveXObject)
   {  
    try
     {
      xhr = new ActiveXObject("Msxml2.XMLHTTP");
     }
    catch (e)
     {
      xhr = new ActiveXObject("Microsoft.XMLHTTP");
     }
   }
  else 
   { 
    xhr = false; 
   }
}

function login(email, mp){
		
				xhr = getXhr();
			
				if ( getXhr() != false ){
		
					xhr.open("POST",'../include/fonctions/login.php',true);
					xhr.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
					xhr.send( "email=" + email + "&mdp=" + mp );			  
				}
}