/***********************************************
* CMotion Image Gallery- ?Dynamic Drive DHTML code library (www.dynamicdrive.com)
* Visit http://www.dynamicDrive.com for source code
* Last updated Mar 15th, 04'. Added "End of Gallery" message.
* This copyright notice must stay intact for legal use
***********************************************/

var restarea=6; //1) width of the "neutral" area in the center of the gallery in px
var maxspeed=7; //2) top scroll speed in pixels. Script auto creates a range from 0 to top speed.
var endofgallerymsg="<span style='font-size: 11px'>End of Gallery</span>"; //3) message to show at end of gallery. Enter "" to disable message.

function enlargeimage(path, optWidth, optHeight){ //function to enlarge image. Change as desired.
var actualWidth=typeof optWidth!="undefined" ? optWidth : "600px" ;//set 600px to default width
var actualHeight=typeof optHeight!="undefined" ? optHeight : "500px" ;//set 500px to  default height
var winattributes="width="+actualWidth+", height="+actualHeight+", resizable=no, toolbar=no, titlebar=no, status=no, scrollbars=no, menubar=no";
var winref = window.open(path,"Screen_Shot_Window", winattributes);
winref.focus();
}

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

var iedom=document.all||document.getElementById;
var scrollspeed=0;
var movestate="";

var actualwidth='';
var cross_scroll, ns_scroll;
var loadedyes=0;

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(){
	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!="")
		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 dsocx=(window.pageXOffset)? pageXOffset: ietruebody().scrollLeft;
	var dsocy=(window.pageYOffset)? pageYOffset : ietruebody().scrollTop;
	var 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;
		if (window.righttime) clearTimeout(righttime)
		if (movestate!="left") moveleft()
	}
	else if (curposy<leftbound){
		scrollspeed=(leftbound-curposy)/((menuwidth-restarea)/2) * maxspeed;
		if (window.lefttime) clearTimeout(lefttime);
		if (movestate!="right") moveright();
	}
	else
		scrollspeed=0
}

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

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

function fillup(){
	if (iedom){
		crossmain=document.getElementById? document.getElementById("motioncontainer") : document.all.motioncontainer;
		menuwidth=parseInt(crossmain.style.width);
		mainobjoffset=getposOffset(crossmain, "left");
		cross_scroll=document.getElementById? document.getElementById("motiongallery") : document.all.motiongallery;
		actualwidth=document.all? cross_scroll.offsetWidth : document.getElementById("trueContainer").offsetWidth;

		crossmain.onmousemove=function(e){
			motionengine(e);
		}

		crossmain.onmouseout=function(e){
			stopmotion(e);
			showhidediv("hidden");
		}
	}
	loadedyes=1;
	if (endofgallerymsg!=""){
		creatediv();
		positiondiv();
	}
}

window.onload=fillup;