function show_reading() {
	var full = document.getElementById('fulltext');
	full.className=(full.className=='show')?'hide':'show';	
	var part = document.getElementById('part_text');
	part.className=(part.className=='show')?'hide':'show';	
	var sel = document.getElementById('selection');
	sel.innerHTML=(part.className=='hide')?'<a href="javascript:show_reading()">Show Less</a>':'<a href="javascript:show_reading()">Read More</a>';
}