function link_highlight ( $pageId_num, $showHide_flag )
{
	str = "";
	tag = null;
	linkDesc_list = document.getElementById ( 'section_link_description' );
	if ( linkDesc_list )
	{
		for ( var i=0; i<linkDesc_list.childNodes.length; i++ )
		{
			tag = linkDesc_list.childNodes [i];
			if ( tag.tagName == "DIV" )
			{
				str += linkDesc_list.childNodes [i];
				if ( tag.id == 'linkDescription_'+$pageId_num )
				{
					tag.style.display = "block";
				}
				else
				{
					tag.style.display = "none";
				}
			}
		}
	}
	
	linkImage_a = document.getElementById ( 'right_menu_item_'+$pageId_num ).parentNode;
	//linkImage_a.style.backgroundColor = "visible";
	//linkImage_a.style.backgroundColor = ( $showHide_flag ? "#E87A18" : "transparent" );
	linkImage_a.style.borderColor = ( $showHide_flag ? "#E87A18" : "#FFFFFF" );
}