function contact(){
	
	var emp=document.getElementById("cont");
	emp.innerHTML="<h2>Nous contacter</h2><form name='mailform'><fieldset><legend>Vos coordonnées :</legend>" +
			      "<label for='email'>Votre email:</label><input type='text'  id='email' maxlength='40' value='email' size='30'/> " +
			      "<label for='comment'>Vos commentaires/Votre message:</label><textarea cols='50' rows='10' id='comment'></textarea></fieldset>"+
			      "<p><input type='submit' value='Envoyer' onClick='send_mail()' /><input type='reset' value='Annuler' ></p>"+
			      "</form>";
		
}

function getXhr(){
    var xhr = null; 
    	if(window.XMLHttpRequest)// Firefox et autres
    			xhr = new XMLHttpRequest(); 
    			else if(window.ActiveXObject){ // Internet Explorer 
    				try {
    					xhr = new ActiveXObject("Msxml2.XMLHTTP");
    					} catch (e) {
    						xhr = new ActiveXObject("Microsoft.XMLHTTP");
    					}
    						}
    					else { // XMLHttpRequest non supporté par le navigateur 
    						 
    						xhr = false; 
    							} 
    return xhr;
}



function send_mail(){
	
	var xhr = getXhr();
	xhr.onreadystatechange = function(){
		if(xhr.readyState == 4)
		{
			if( xhr.status == 200)
			{	
			document.getElementById("cont").innerHTML=xhr.responseText ;
		    }
		};	
	xhr.open("POST","mail.php",true);	
	xhr.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
	mail= document.getElementById('email').Value;
	msg= document.getElementById('comment').value;
	xhr.send("mail="+mail+"&msg="+msg);
	};
	
}