/***********************************************
* CMotion Image Gallery- © Dynamic Drive DHTML code library (www.dynamicdrive.com)
* Visit http://www.dynamicDrive.com for source code
* This copyright notice must stay intact for legal use
* Modified for autowidth and optional starting positions in
* http://www.dynamicdrive.com/forums/showthread.php?t=11839 by jschuer1 8/5/06
***********************************************/

//1) Set width of the "neutral" area in the center of the gallery.
var restarea = 6;
//2) Set top scroll speed in pixels. Script auto creates a range from 0 to top speed.
var maxspeed = 4;
//3) Set to maximum width for gallery - must be less than the actual length of the image train.
var maxwidth = 1000;
//4) Set to 1 for left start, 0 for right, 2 for center.
var startpos = 0;
//5) Set message to show at end of gallery. Enter "" to disable message.
var endofgallerymsg = '';

function enlargeimage(path, optWidth, optHeight) { //function to enlarge image. Change as desired.
    var actualWidth = typeof optWidth != "undefined" ? optWidth : "1000px" //set 600px to default width
    var actualHeight = typeof optHeight != "undefined" ? optHeight : "500px" //set 500px to  default height
    var winattributes = "width=" + actualWidth + ",height=" + actualHeight + ",resizable=yes"
    window.open(path, "", winattributes)
}

////NO NEED TO EDIT BELOW THIS LINE////////////

var iedom = document.all || document.getElementById, scrollspeed = 0, movestate = '', actualwidth = '', cross_scroll, ns_scroll, statusdiv, loadedyes = 0, lefttime, righttime;

function ietruebody() {
    return (document.compatMode && document.compatMode != "BackCompat") ? document.documentElement : document.body;
}

function creatediv() {
    statusdiv = document.createElement("div")
    statusdiv.setAttribute("id", "statusdiv")
    document.body.appendChild(statusdiv)
    statusdiv = document.getElementById("statusdiv")
    statusdiv.innerHTML = endofgallerymsg
}

function positiondiv() {
    var mainobjoffset = getposOffset(crossmain, "left"),
menuheight = parseInt(crossmain.offsetHeight),
mainobjoffsetH = getposOffset(crossmain, "top");
    statusdiv.style.left = mainobjoffset + (menuwidth / 2) - (statusdiv.offsetWidth / 2) + "px";
    statusdiv.style.top = menuheight + mainobjoffsetH + "px";
}

function showhidediv(what) {
    if (endofgallerymsg != "") {
        positiondiv();
        statusdiv.style.visibility = what;
    }
}

function getposOffset(what, offsettype) {
    var totaloffset = (offsettype == "left") ? what.offsetLeft : what.offsetTop;
    var parentEl = what.offsetParent;
    while (parentEl != null) {
        totaloffset = (offsettype == "left") ? totaloffset + parentEl.offsetLeft : totaloffset + parentEl.offsetTop;
        parentEl = parentEl.offsetParent;
    }
    return totaloffset;
}


function moveleft() {
    if (loadedyes) {
        movestate = "left";
        if (iedom && parseInt(cross_scroll.style.left) > (menuwidth - actualwidth)) {
            cross_scroll.style.left = parseInt(cross_scroll.style.left) - scrollspeed + "px";
            showhidediv("hidden");
        }
        else
            showhidediv("visible");
    }
    lefttime = setTimeout("moveleft()", 10);
}

function moveright() {
    if (loadedyes) {
        movestate = "right";
        if (iedom && parseInt(cross_scroll.style.left) < 0) {
            cross_scroll.style.left = parseInt(cross_scroll.style.left) + scrollspeed + "px";
            showhidediv("hidden");
        }
        else
            showhidediv("visible");
    }
    righttime = setTimeout("moveright()", 10);
}

function motionengine(e) {
    var mainobjoffset = getposOffset(crossmain, "left"),
dsocx = (window.pageXOffset) ? pageXOffset : ietruebody().scrollLeft,
dsocy = (window.pageYOffset) ? pageYOffset : ietruebody().scrollTop,
curposy = window.event ? event.clientX : e.clientX ? e.clientX : "";
    curposy -= mainobjoffset - dsocx;
    var leftbound = (menuwidth - restarea) / 2;
    var rightbound = (menuwidth + restarea) / 2;
    if (curposy > rightbound) {
        scrollspeed = (curposy - rightbound) / ((menuwidth - restarea) / 2) * maxspeed;
        clearTimeout(righttime);
        if (movestate != "left") moveleft();
    }
    else if (curposy < leftbound) {
        scrollspeed = (leftbound - curposy) / ((menuwidth - restarea) / 2) * maxspeed;
        clearTimeout(lefttime);
        if (movestate != "right") moveright();
    }
    else
        scrollspeed = 0;
}

function contains_ns6(a, b) {
    if (b !== null)
        while (b.parentNode)
        if ((b = b.parentNode) == a)
        return true;
    return false;
}

function stopmotion(e) {
    if (!window.opera || (window.opera && e.relatedTarget !== null))
        if ((window.event && !crossmain.contains(event.toElement)) || (e && e.currentTarget && e.currentTarget != e.relatedTarget && !contains_ns6(e.currentTarget, e.relatedTarget))) {
        clearTimeout(lefttime);
        clearTimeout(righttime);
        movestate = "";
    }
}

function fillup() {
    if (iedom) {
        crossmain = document.getElementById ? document.getElementById("motioncontainer") : document.all.motioncontainer;
        if (typeof crossmain.style.maxWidth !== 'undefined')
            crossmain.style.maxWidth = maxwidth + 'px';
        menuwidth = crossmain.offsetWidth;
        cross_scroll = document.getElementById ? document.getElementById("motiongallery") : document.all.motiongallery;
        actualwidth = document.getElementById ? document.getElementById("trueContainer").offsetWidth : document.all['trueContainer'].offsetWidth;
        if (startpos)
            cross_scroll.style.left = (menuwidth - actualwidth) / startpos + 'px';
        crossmain.onmousemove = function(e) {
            motionengine(e);
        }

        crossmain.onmouseout = function(e) {
            stopmotion(e);
            showhidediv("hidden");
        }
    }
    loadedyes = 1
    if (endofgallerymsg != "") {
        creatediv();
        positiondiv();
    }
    if (document.body.filters)
        onresize()
}
window.onload = fillup;

onresize = function() {
    if (typeof motioncontainer !== 'undefined' && motioncontainer.filters) {
        motioncontainer.style.width = "0";
        motioncontainer.style.width = "";
        motioncontainer.style.width = Math.min(motioncontainer.offsetWidth, maxwidth) + 'px';
    }
    menuwidth = crossmain.offsetWidth;
    cross_scroll.style.left = startpos ? (menuwidth - actualwidth) / startpos + 'px' : 0;
}