function createXHR()
{
    var request = false;
        try {
            request = new ActiveXObject('Msxml2.XMLHTTP');
        }
        catch (err2) {
            try {
                request = new ActiveXObject('Microsoft.XMLHTTP');
            }
            catch (err3) {
		try {
			request = new XMLHttpRequest();
		}
		catch (err1)
		{
			request = false;
		}
            }
        }
    return request;
}


function preloading(url)
{
	var xhr=createXHR();
	xhr.onreadystatechange=function()
	{
		if(xhr.readyState == 4)
		{
			var content = xhr.responseText;
			var i = new Image();
			i.src = content;
		}
	};

	xhr.open("GET", url , true);
	xhr.send(null);
}


function charge_image() {
	//for(i = 1; i < 7; i++) preloading('images_interface/vignette_'+i+'bis.jpg');
	//preloading('images_interface/tuffe_clair.gif');
	preloading('images_interface/tuffe.gif');
	//preloading('images_interface/fond_marbre.jpg');
	}