function openclose(id){
	elem=document.getElementById(id);
	if (elem.style.display=="none") {
		elem.style.display="block";
	}else{
		elem.style.display="none";
	}
}

function fontsize(container,add){
	size = Number(document.getElementById(container).style.fontSize.match(/\d+/)[0])+Number(add);
	document.getElementById(container).style.fontSize=size+'px';
}

function hideFlash(){
    document.getElementById('flash_overlay_background').style.display="none";
    document.getElementById('flash_overlay').style.display="none";
    document.getElementById('banner-layer').style.display="none";
}