jQuery(document).ready(function(){	
	jQuery("body").append("<div id=\"loadingBox\" class=\"loadingBox\"><div id=\"loadingMessageBox\"><span id=\"loadingMessage\">traitement...</span></div></div>");
});

jQuery(window).resize(function(){
	resizeLoadingBox();
});

function resizeLoadingBox() {
	var bodyWidth = jQuery(document).width();
	var bodyHeight = jQuery(document).height();
	jQuery('#loadingBox').css("width", bodyWidth+"px");
	jQuery('#loadingBox').css("height", bodyHeight + "px");
}

function showLoading(message) {
	resizeLoadingBox();
	jQuery('#loadingBox').css("visibility", "visible");
	jQuery('#loadingMessage').html(message);
	if(jQuery.browser.msie) jQuery('#loadingMessageBox').css("position", "absolute");
	var wMessageBox = jQuery("#loadingMessageBox").innerWidth();
	var hMessageBox = jQuery("#loadingMessageBox").innerHeight();
	jQuery('#loadingMessageBox').css("marginTop", -(hMessageBox/2));
	jQuery('#loadingMessageBox').css("marginLeft", -(wMessageBox/2));
}

function hideLoading(){
	jQuery('#loadingBox').css("display", "none");
}