function showAddContentForm() {	
	if (Browser.Engine.trident) {
		return true;
	}	
	if (!winFormAddContent) {		
		winFormAddContent=new StickyWin.Modal({content: $('add_content-form'), closeClassName: 'close-block', useIframeShim: false});
	}
	winFormAddContent.show();
	winFormAddContent.pin(true);
	return false;
}

function hideAddContentForm() {
	winFormAddContent.hide();
}

var winFormAddContent=false;