/**
 * Deaktiviert den Inhalt
 * bzw. blendet Overlay ein
 */
function deactivateControls(Element) {
	var overlay = document.createElement('div');
	var Width 	= $('#'+Element).outerWidth();
	var Height  = $('#'+Element).outerHeight();
	$(overlay).attr('id', 'overlay');
	$(overlay).css('filter', 'alpha(opacity=50)'); /*IE-Transparenz-Fix*/
	$(overlay).css('display', 'block');
	$(overlay).css('width', Width+"px");
	$(overlay).css('height', Height+"px");
	$(overlay).html('<center><span style="margin-top:50px; display:inline-block"><img src="/images/ajax-loader.gif"></span></center>');
	$(overlay).prependTo($("#"+Element));
}
function deactivateSite() {
	var overlay = document.createElement('div');
	var Width 	= $('body').outerWidth();
	var Height  = $('body').outerHeight();
	$(overlay).attr('id', 'overlay');
	$(overlay).css('filter', 'alpha(opacity=50)'); /*IE-Transparenz-Fix*/
	$(overlay).css('display', 'block');
	$(overlay).css('width', Width+"px");
	$(overlay).css('height', Height+"px");
	$(overlay).html('<center><span style="margin-top:50px; display:inline-block"><img src="/images/ajax-loader.gif"></span></center>');
	$(overlay).prependTo($("body"));
}
/**
 * Aktiviert den Inhalt
 * bzw. blendet Overlay aus
 */
function activateControls() {
	$('#overlay').css('display', 'none');
	$('#overlay').remove();
}

/**
 * Erstellt einen Lade-Hinweis und zeigt diesen an
 */
function displayLoading() {
	var loading = document.createElement('div');
	$(loading).attr('id', 'loadingNotice');
	$(loading).text('Lade...');
	$(loading).prependTo($("#overlay"));
}