/* set some defaults */
var thumbArray = new Array();
var imageArray = new Array();
var altbArray = new Array();
var numThumbs = 6;
var linkArray = new Array();
var altLinkArray = new Array();
var numLinks = 8;

var cIndex = -1;
function cycleThumbnails()
{
	var x;
	var a=cycleThumbnails.arguments; 
	
	cIndex += a[0] ? 1 : -1;
	if(cIndex<=0) cIndex = 0;	
	else if(cIndex+numThumbs>thumbArray.length) cIndex = thumbArray.length - numThumbs;
	
	showHide('previous_thumb', cIndex>0);
	showHide('next_thumb', cIndex+numThumbs<thumbArray.length);
	
	for(i=0; i<numThumbs; i++) {
		if(i<thumbArray.length) {
			x=MM_findObj('thumb'+(i+1));	
			x.src = thumbArray[cIndex+i];
			x.alt = altArray[cIndex+i];
		} else {
			showHide('thumb'+(i+1), 0);
		}
	}
}

function showHide()
{
	var a=showHide.arguments;
	var x=MM_findObj(a[0]);
	x.style.visibility = a[1] ? 'visible' : 'hidden';
}

function selectThumb()
{
	var a=selectThumb.arguments;
	var x=MM_findObj("display");
	x.src = imageArray[cIndex+(a[0]-1)];
	x.alt = altArray[cIndex+(a[0]-1)];
}

var lIndex = -1;
function cycleLinks()
{
	var x,y;
	var a=cycleLinks.arguments; 
	
	lIndex += a[0] ? 1 : -1;
	if(lIndex<=0) lIndex = 0;	
	else if(lIndex+numLinks>linkArray.length) lIndex = linkArray.length - numLinks;
	
	showHide('previous_link', lIndex>0);
	showHide('next_link', lIndex+numLinks<linkArray.length);
	
	var leg = MM_findObj('legend');
	if(linkArray.length>numLinks) {
		leg.innerHTML = '<p>'+(lIndex+1)+' to '+(lIndex+numLinks)+' of '+linkArray.length+'</p>';
	} else {
		leg.innerHTML = '<p>&nbsp;</p>';
	}
	
	for(i=0; i<numLinks; i++) {
		if(i<linkArray.length) {
			y=MM_findObj('link'+(i+1)+"a");
			x=MM_findObj('link'+(i+1));
			x.src = linkArray[lIndex+i];
			x.alt = altLinkArray[lIndex+i];
			/*x.innerHTML = '<img src="'+linkArray[lIndex+i]+'" alt="'+altLinkArray[lIndex+i]+'" width="15" height="18" class="rightPad" />';*/
			y.href = urlLinkArray[lIndex+i];
		} else {
			showHide('link'+(i+1), 0);
		}
	}
}