function localFilename(url)	// removing path
{
	var x = url.lastIndexOf("/");
	url = url.slice(x + 1);
	return url;		
}


// images are loaded asynchronously with no delay

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 enlarge(element)
{
	var name = element.src;
	name = localFilename(name);
	name = name.slice(4);
	name = "big-" +name;
	name = "gal_image_client/" + name;  // restore path and add the new "big-" prefix*/
	
	// building a string to display the image
	
	var str = "<img style='width:100%; display:block; ' src='" + name + "' >";
	document.getElementById("bigview").innerHTML = str;

}

function disparaitre(element) {

	url="clients_formulaire.php";

	var xhr_object = null;
	if(window.XMLHttpRequest) // Firefox
		xhr_object = new XMLHttpRequest();
	else if(window.ActiveXObject) // Internet Explorer
		xhr_object = new ActiveXObject("Microsoft.XMLHTTP");
	else {
		// XMLHttpRequest non supporté par le navigateur
		alert("Votre navigateur ne supporte pas les objets XMLHTTPRequest...");
		return;
	}
	xhr_object.onreadystatechange = function anonymous() {
		if(xhr_object.readyState == 4)
			var tmp=xhr_object.responseText;
			document.getElementById("bigview").innerHTML = tmp;
	}
	xhr_object.open("GET", url, true);
	xhr_object.send(null);
}

function aff_legende(id,div) {

	url="get_legende_galerie.php?id="+id+"&div="+div;

	var xhr_object = null;
	if(window.XMLHttpRequest) // Firefox
		xhr_object = new XMLHttpRequest();
	else if(window.ActiveXObject) // Internet Explorer
		xhr_object = new ActiveXObject("Microsoft.XMLHTTP");
	else {
		// XMLHttpRequest non supportÃ~C© par le navigateur
		alert("Votre navigateur ne supporte pas les objets XMLHTTPRequest...");
		return;
	}
	xhr_object.onreadystatechange = function anonymous() {
		if(xhr_object.readyState == 4)
			var tmp=xhr_object.responseText;
			document.getElementById(div).innerHTML = tmp;
	}
	xhr_object.open("GET", url, true);
	xhr_object.send(null);
}