// Rollover (Central Image Variant)  v1.0// http://www.dithered.com/javascript/rollover_central/index.html// code by Chris Nott (chris@NOSPAMdithered.com - remove NOSPAM)var rolloverCentralImageOn = new Array();var rolloverCentralImageOff = null;// Preload rollover imagesfunction rolloverCentralInit() {	if (document.images) {				// for each rollover, preload both states and put filename in an associative array		for (var i = 0; i < rolloverCentralImageOnFiles.length; i++) {			rolloverCentralImageOn[i] = new Image();			rolloverCentralImageOn[i].src = rolloverCenImageDirectory + rolloverCentralImageOnFiles[i];		}				rolloverCentralImageOff = new Image();		rolloverCentralImageOff.src = rolloverCenImageDirectory + rolloverCentralImageOffFile;	}}// On state activationfunction rolloverCentralOn(num) {	if (document.images && rolloverCentralImageOn[num]) {				// rollovers in layers in NS4 require a different image reference		if (rolloverCentralImageLayerName != '' && document.layers) {			document.layers[rolloverCentralImageLayerName].document.images[rolloverCentralImageTagName].src = rolloverCentralImageOn[num].src;		}				// non-layer rollovers in NS4 and all rollovers in other browsers		else if (document.images[rolloverCentralImageTagName]) {			document.images[rolloverCentralImageTagName].src = rolloverCentralImageOn[num].src;		}	}}// Off state activationfunction rolloverCentralOff() {	if (document.images && rolloverCentralImageOff) {		// rollovers in layers in NS4 require a different image reference		if (rolloverCentralImageLayerName != '' && document.layers) {			document.layers[rolloverCentralImageLayerName].document.images[rolloverCentralImageTagName].src = rolloverCentralImageOff.src;		}				// non-layer rollovers in NS4 and all rollovers in other browsers		else if (document.images[rolloverCentralImageTagName]) {			document.images[rolloverCentralImageTagName].src = rolloverCentralImageOff.src;		}	}}// Rollover with state function (not used in standard rollovers; included for flexability)function rolloverCentralSetCurrent(num) {	rolloverCentralImageOff.src = rolloverCentralImageOn[num].src;}