function init_ajax()
{
	var xhr = null;
	// Firefox
	if(window.XMLHttpRequest){xhr = new XMLHttpRequest();}
	// Internet Explorer
	else if(window.ActiveXObject){xhr = new ActiveXObject("Microsoft.XMLHTTP");}
	// XMLHttpRequest non supporté par le navigateur
	else {alert("Votre navigateur ne supporte pas les objets XMLHTTPRequest...");return;}
	return xhr;
}
//---------------------------------------------------------------------------------------------------------
//---------------------------------------------------------------------------------------------------------
function load_ajax(connexion,method,script_php,variable,exec)
{
	connexion.open(method, script_php, true);
	connexion.onreadystatechange = function()
									{
										if(connexion.readyState == 4)
										{
											//alert(connexion.responseText);
											var tmp = connexion.responseText;
											var var_explode = connexion.responseText.split('!!');
											var tmp1 = var_explode[0];
											var tmp2 = var_explode[1];
											var tmp3 = var_explode[2];
											var tmp4 = var_explode[3];
											eval(exec);
										}
									}
	connexion.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	connexion.send(variable);
}
//---------------------------------------------------------------------------------------------------------
//---------------------------------------------------------------------------------------------------------
//--------------------------------------------
//--------------------------------------------