function expander(id, readless, readmore){
	if(document.getElementById('kb_item_'+id).style.height=='' || 
	   document.getElementById('kb_item_'+id).style.height=='40px') {
	   document.getElementById('kb_item_'+id).style.height = 'auto'; 
	   document.getElementById('kb_item_'+id).style.overflow='visible'; 
	   document.getElementById('kb_link_'+id).innerHTML = readless;
	   document.getElementById('kb_gradient_'+id).style.visibility = 'hidden';
	   document.getElementById('kb_gradient_'+id).style.display = 'none';
	} else { 
	   document.getElementById('kb_item_'+id).style.height = '40px'; 
	   document.getElementById('kb_item_'+id).style.overflow = 'hidden'; 
	   document.getElementById('kb_link_'+id).innerHTML = readmore;
	   document.getElementById('kb_gradient_'+id).style.visibility = 'visible';
	   document.getElementById('kb_gradient_'+id).style.display = 'block';
	}
}