function moreless(o,target){
	// show or hide a certain amount of paragraphs above the read more / less button
	//alert(o);
	b=document.getElementById(target);
	b.style.display=(b.style.display=='none' || b.style.display=="undefined" || !b.style.display)?"block":"none";
	o.src=(b.style.display=='none' || !b.style.display=="undefined" || !b.style.display)?"images/button_readmore.gif":"images/button_readless.gif";
}