function zoomIn(from) {

	zoomimg.src = from.getAttribute("href");

	if (from.childNodes[0].width) {
		startW = from.childNodes[0].width;
		startH = from.childNodes[0].height;
		startPos = findElementPos(from.childNodes[0]);
	} else {
		startW = 50;
		startH = 12;
		startPos = findElementPos(from);
	}
		    
	hostX = startPos[0];
	hostY = startPos[1];

	if (document.getElementById('scroller')) {
		hostX = hostX - document.getElementById('scroller').scrollLeft;
	}

	endW = imgPreload.width;
	endH = imgPreload.height;
	
	if (zoomActive[theID] != true) {

		document.getElementById("ShadowBox").style.visibility = "hidden";
		document.getElementById("ZoomClose").style.visibility = "hidden";     

		if (includeCaption == 1) {
			zoomcap  = document.getElementById(theCap);
			zoomcapd = document.getElementById(theCapDiv);
       
			if (from.getAttribute('title') && includeCaption == 1) {
				zoomcapd.style.display = 'block';
				zoomcap.innerHTML = from.getAttribute('title');
			} else {
				zoomcapd.style.display = 'none';
			}
       
		}   
     
		zoomOrigW[theID] = startW;
		zoomOrigH[theID] = startH;
		zoomOrigX[theID] = hostX;
		zoomOrigY[theID] = hostY;

		zoomimg.style.width = startW + 'px';
		zoomimg.style.height = startH + 'px';
		zoomdiv.style.left = hostX + 'px';
		zoomdiv.style.top = hostY + 'px';

		if (fade == 1) {
			setOpacity(0, zoomID);
		}
		zoomdiv.style.visibility = "visible";

		sizeRatio = endW / endH;
		if (endW > myWidth - minBorder) {
			endW = myWidth - minBorder;
			endH = endW / sizeRatio;
		}
		if (endH > myHeight - minBorder) {
			endH = myHeight - minBorder;
			endW = endH * sizeRatio;
		}

		zoomChangeX = ((myWidth / 2) - (endW / 2) - hostX);
		zoomChangeY = (((myHeight / 2) - (endH / 2) - hostY) + myScroll);
		zoomChangeW = (endW - startW);
		zoomChangeH = (endH - startH);

		zoomCurrent = 0;

		if (fade == 1) {
			fadeCurrent = 0;
			fadeAmount = (0 - 100) / zoomSteps;
		} else {
			fadeAmount = 0;
		}

		zoomTimer[theID] = setInterval("zoomElement('"+zoomID+"', '"+theID+"', "+zoomCurrent+", "+startW+", "+zoomChangeW+", "+startH+", "+zoomChangeH+", "+hostX+", "+zoomChangeX+", "+hostY+", "+zoomChangeY+", "+zoomSteps+", "+fade+", "+fadeAmount+", 'zoomDoneIn(zoomID)')", zoomTime);		
		zoomActive[theID] = true; 
	}
}

function linear(t, b, c, d)
{
	return c*t/d + b;
}

function sineInOut(t, b, c, d)
{
	return -c/2 * (Math.cos(Math.PI*t/d) - 1) + b;
}

function cubicIn(t, b, c, d) {
	return c*(t/=d)*t*t + b;
}

function cubicOut(t, b, c, d) {
	return c*((t=t/d-1)*t*t + 1) + b;
}

function cubicInOut(t, b, c, d)
{
	if ((t/=d/2) < 1) return c/2*t*t*t + b;
	return c/2*((t-=2)*t*t + 2) + b;
}

function bounceOut(t, b, c, d)
{
	if ((t/=d) < (1/2.75)){
		return c*(7.5625*t*t) + b;
	} else if (t < (2/2.75)){
		return c*(7.5625*(t-=(1.5/2.75))*t + .75) + b;
	} else if (t < (2.5/2.75)){
		return c*(7.5625*(t-=(2.25/2.75))*t + .9375) + b;
	} else {
		return c*(7.5625*(t-=(2.625/2.75))*t + .984375) + b;
	}
}

function getSize() {
	if (document.all) {
		myWidth  = (document.documentElement.clientWidth) ? document.documentElement.clientWidth : document.body.clientWidth;
		myHeight = (document.documentElement.clientHeight) ? document.documentElement.clientHeight : document.body.clientHeight;
		myScroll = (document.documentElement.scrollTop) ? document.documentElement.scrollTop : document.body.scrollTop;
	} else {
		myWidth = window.innerWidth;
		myHeight = window.innerHeight;
		myScroll = window.pageYOffset;
	}
	
    if (window.innerHeight && window.scrollMaxY) {	
        myScrollWidth = document.body.scrollWidth;
		myScrollHeight = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight) {
		myScrollWidth = document.body.scrollWidth;
		myScrollHeight = document.body.scrollHeight;
	} else { 
		myScrollWidth = document.body.offsetWidth;
		myScrollHeight = document.body.offsetHeight;
	}
}

function findElementPos(elemFind)
{
	var elemX = 0;
	var elemY = 0;
	do {
		elemX += elemFind.offsetLeft;
		elemY += elemFind.offsetTop;
	} while ( elemFind = elemFind.offsetParent )

	return Array(elemX, elemY);
}