// Preload the on states of the tabs for quicker response
		image_visitor = new Image();
		image_visitor.src = "images/visitor-on.gif";

		image_media = new Image();
		image_media.src = "images/media-on.gif";

		image_data = new Image();
		image_data.src = "images/data-on.gif";

		image_phone = new Image();
		image_phone.src = "images/phone-on.gif";

		//set tab for correct sport
		var setNewsTab;
		var TabID = 1;
		if (TabID == 2) {
		setNewsTab = 'data';
		} else if (TabID == 5) {
		setNewsTab = 'media';
		} else if (TabID == 6) {
		setNewsTab = 'phone';
		} else {
									
		setNewsTab = 'visitor';
		}

		// Function which actually swaps tabs
		function changeNewsTab (tabname) {
		document.getElementById('tab_visitor').style.display = 'none';
		document.getElementById('tab_media').style.display = 'none';
		document.getElementById('tab_data').style.display = 'none';
		document.getElementById('tab_phone').style.display = 'none';
		document.getElementById('tab_'+tabname).style.display = 'block';
		document.getElementById('tabnav_visitor').src = 'images/visitor-off.gif';
		document.getElementById('tabnav_media').src = 'images/media-off.gif';
		document.getElementById('tabnav_data').src = 'images/data-off.gif';
		document.getElementById('tabnav_phone').src = 'images/phone-off.gif';
		document.getElementById('tabnav_'+tabname).src = 'images/'+tabname+'-on.gif';
		
		}