function showdescription ( $divNumber )
{
	str = "";
	tag = null;
	linkDesc_list = document.getElementById ( 'section_link_description' );
	for ( var i=0; i<linkDesc_list.childNodes.length; i++ )
	{
		tag = linkDesc_list.childNodes [i];
		if ( tag.tagName == "DIV" )
		{
			str += linkDesc_list.childNodes [i];
			if ( tag.id == 'linkDescription_'+$divNumber )
			{
				tag.style.display = "block";
			}
			else
			{
				tag.style.display = "none";
			}
		}
	}
	//alert ( str );
	//document.getElementById ( 'linkDescription_'+$divNumber ).style.display = "block";
}