function lengthenContent() {
		var grp1;
		var nav;
		var content;
		
		grp1 = document.getElementById('hp_grp1');
		nav = document.getElementById('hp_navigation');
		
		if (grp1) {
			content = document.getElementById('hp_txt_content');
		} else {
			grp1 = document.getElementById('sp_grp1');
			content = document.getElementById('sp_txt_content');
		}

		if (!nav) {
			nav = document.getElementById('sp_navigation');
		}

		if (grp1 && nav && content) {
			var nav_bottom = nav.offsetTop + nav.offsetHeight;

			var content_bottom = grp1.offsetTop + content.offsetTop + content.offsetHeight;
			
			if (nav_bottom > content_bottom) {
				var new_content_height = content.offsetHeight + nav_bottom - content_bottom;
				content.style.height = new_content_height + 'px';
			}
		}
	}