/* --- BoxOver ---
/* --- v 1.2 February 17th 2005
By Oliver Bryant with help of Matthew Tagg
http://boxover.swazz.org */

/*
======================================
edited by BLAIR CONNOLLY on 12/22/2005
======================================
	I made minor changes that make the call to init()
	happen when this file loads, not when the page loads.
	I did this because the header & footer files on this
	site sometimes take a long time to load all images,
	and the help text would not show up until that happened.
	I also had to set the oDv.style.zIndex since the div is
	being added first thing now, it was below any other div
	tags on the page.
	
	I also added the interval calls to scanDOM and the 
	window.onload event to kill the interval.  I did this
	because if the mouse cursor was moving when the help 
	icon image loaded, then none of the help windows would 
	work.
	
	For some reason, if you are moving the mouse over one
	of the help icons right as that image loads, the help
	box does not appear for just that image, but still
	works for everything else.
*/

if (typeof document.attachEvent!='undefined') {
//   window.attachEvent('onload',init);
window.attachEvent('onload',killInterval);
   document.attachEvent('onmousemove',moveMouse);
   document.attachEvent('onclick',checkMove); }
else {
//   window.addEventListener('load',init,false);
window.addEventListener('load',killInterval,false);
   document.addEventListener('mousemove',moveMouse,false);
   document.addEventListener('click',checkMove,false);
}

/* --- These are all global variables used --- */
var oDv=document.createElement("div");
var dvHdr=document.createElement("div");
var dvBdy=document.createElement("div");
var windowlock,boxMove,fixposx,fixposy,lockX,lockY,fixx,fixy,ox,oy,boxLeft,boxRight,boxTop,boxBottom,evt,mouseX,mouseY,boxOpen,totalScrollTop,totalScrollLeft;
boxOpen=false;
ox=10;
oy=10;
lockX=0;
lockY=0;

var scanDOM_interval;

init();
function init() {
	oDv.appendChild(dvHdr);
	oDv.appendChild(dvBdy);
	oDv.style.position="absolute";
	oDv.style.visibility='hidden';
oDv.style.zIndex=9999;
	document.body.appendChild(oDv);	
scanDOM_interval = window.setInterval('scanDOM(document.body.firstChild);', 500);
}

function killInterval () {
	window.clearInterval(scanDOM_interval);
	scanDOM(document.body.firstChild);
}

function defHdrStyle() {
	dvHdr.innerHTML='<img  style="vertical-align:middle"  src="info.gif">&nbsp;&nbsp;'+dvHdr.innerHTML;
	dvHdr.style.fontWeight='bold';
	dvHdr.style.fontFamily='arial';
	dvHdr.style.border='1px solid #A5CFE9';
	dvHdr.style.padding='3';
	dvHdr.style.fontSize='11';
	dvHdr.style.color='#4B7A98';
	dvHdr.style.background='#D5EBF9';
	dvHdr.style.filter='alpha(opacity=85)'; // IE
	dvHdr.style.opacity='0.85'; // Firefox
}

function defBdyStyle() {
	dvBdy.style.borderBottom='1px solid #A5CFE9';
	dvBdy.style.borderLeft='1px solid #A5CFE9';
	dvBdy.style.borderRight='1px solid #A5CFE9';
	dvBdy.style.fontFamily='arial';
	dvBdy.style.fontSize='11';
	dvBdy.style.padding='3';
	dvBdy.style.color='#1B4966';
	dvBdy.style.background='#FFFFFF';
	dvBdy.style.filter='alpha(opacity=85)'; // IE
	dvBdy.style.opacity='0.85'; // Firefox
}

var cnt=0;
function scanDOM(curNode) {
	cnt++;
	while(curNode)	{
		if (curNode.title) {
		  if ((curNode.title.indexOf('header')>-1)&(curNode.title.indexOf('body')>-1)&(curNode.title.indexOf('[')>-1)&(curNode.title.indexOf('[')>-1)) {
   			curNode.boHDR=getParam('(?:[^a-zA-Z]header|^header)',curNode.title);
   			curNode.boBDY=getParam('(?:[^a-zA-Z]body|^body)',curNode.title);
   			curNode.boCSSBDY=getParam('cssbody',curNode.title);			
   			curNode.boCSSHDR=getParam('cssheader',curNode.title);
   			curNode.fixX=parseInt(getParam('fixedrelx',curNode.title));
   			curNode.fixY=parseInt(getParam('fixedrely',curNode.title));
   			curNode.absX=parseInt(getParam('fixedabsx',curNode.title));
   			curNode.absY=parseInt(getParam('fixedabsy',curNode.title));
   			curNode.offY=(getParam('offsety',curNode.title)!='')?parseInt(getParam('offsety',curNode.title)):10;
   			curNode.offX=(getParam('offsetx',curNode.title)!='')?parseInt(getParam('offsetx',curNode.title)):10;
   			if (getParam('doubleclickstop',curNode.title)!='off') {
   				document.all?curNode.attachEvent('ondblclick',pauseBox):curNode.addEventListener('dblclick',pauseBox,false);
   			}						
   			curNode.windowLock=getParam('windowlock',curNode.title).toLowerCase()=='off'?false:true;
   			curNode.title='';
   			curNode.hasbox='true';
   	   }
		}
		scanDOM(curNode.firstChild);
		curNode=curNode.nextSibling;
	}
}

function getParam(param,list) {
	var reg = new RegExp(param+'\\s*=\\s*\\[\\s*(((\\[\\[)|(\\]\\])|([^\\]\\[]))*)\\s*\\]');
	var res = reg.exec(list);
	var returnvar;
	if(res)
		return res[1].replace('[[','[').replace(']]',']');
	else
		return '';
}

function Left(elem){	
	var x=0;
	if (elem.calcLeft)
		return elem.calcLeft;
	var oElem=elem;
	while(elem){
		 if ((elem.currentStyle)&& (!isNaN(parseInt(elem.currentStyle.borderLeftWidth)))&&(x!=0))
		 	x+=parseInt(elem.currentStyle.borderLeftWidth);
		 x+=elem.offsetLeft;
		 elem=elem.offsetParent;
	  } 
	oElem.calcLeft=x;
	return x;
	}

function Top(elem){
	 var x=0;
	 if (elem.calcTop)
	 	return elem.calcTop;
	 var oElem=elem;
	 while(elem){		
	 	 if ((elem.currentStyle)&& (!isNaN(parseInt(elem.currentStyle.borderTopWidth)))&&(x!=0))
		 	x+=parseInt(elem.currentStyle.borderTopWidth); 
		 x+=elem.offsetTop;
	         elem=elem.offsetParent;
 	 } 
 	 oElem.calcTop=x;
 	 return x;
 	 
}

var ah,ab;
function applyStyles() {
	if(ab)
		oDv.removeChild(dvBdy);
	if (ah)
		oDv.removeChild(dvHdr);
	dvHdr=document.createElement("div");
	dvBdy=document.createElement("div");
	curBoxElem.boCSSBDY?dvBdy.className=curBoxElem.boCSSBDY:defBdyStyle();
	curBoxElem.boCSSHDR?dvHdr.className=curBoxElem.boCSSHDR:defHdrStyle();
	dvHdr.innerHTML=curBoxElem.boHDR;
	dvBdy.innerHTML=curBoxElem.boBDY;
	ah=false;
	ab=false;
	if (curBoxElem.boHDR!='') {		
		oDv.appendChild(dvHdr);
		ah=true;
	}	
	if (curBoxElem.boBDY!=''){
		oDv.appendChild(dvBdy);
		ab=true;
	}	
}

var curSrcElem,iterElem,lastSrcElem,curBoxElem,lastBoxElem, totalScrollLeft, totalScrollTop ;
var ini=false;

function moveMouse(e) {
   if (!ini) {      
//      scanDOM(document.body.firstChild);
      ini=true;
   }
	e?evt=e:evt=event;	
	//evt=event;
		
	curSrcElem=evt.target?evt.target:evt.srcElement;
	if ((curSrcElem!=lastSrcElem)&&(!isChild(curSrcElem,dvHdr))&&(!isChild(curSrcElem,dvBdy))){
		
		if (!curSrcElem.boxItem) {
			iterElem=curSrcElem;
			while ((!iterElem.hasbox)&&(iterElem.parentNode))
					iterElem=iterElem.parentNode; 
			curSrcElem.boxItem=iterElem;
			}
		iterElem=curSrcElem.boxItem;
		if (curSrcElem.boxItem&&curSrcElem.boxItem.hasbox)  {
			lastBoxElem=curBoxElem;
			curBoxElem=iterElem;
			if (curBoxElem!=lastBoxElem) {
				applyStyles();
				oDv.style.visibility='visible';
				fixposx=!isNaN(curBoxElem.fixX)?Left(curBoxElem)+curBoxElem.fixX:curBoxElem.absX;
				fixposy=!isNaN(curBoxElem.fixY)?Top(curBoxElem)+curBoxElem.fixY:curBoxElem.absY;			
				lockX=0;
				lockY=0;
				boxMove=true;
				ox=curBoxElem.offX?curBoxElem.offX:10;
				oy=curBoxElem.offY?curBoxElem.offY:10;
			}
		}
		else if (!isChild(curSrcElem,dvHdr) && !isChild(curSrcElem,dvBdy) && (boxMove))	{
			// The conditional here fixes flickering between tables cells.
			if ((!isChild(curBoxElem,curSrcElem)) || (curSrcElem.tagName!='TABLE')) {
			
			curBoxElem=null;
			oDv.style.visibility='hidden'; }
		}
		lastSrcElem=curSrcElem;
	}
	else if (((isChild(curSrcElem,dvHdr) || isChild(curSrcElem,dvBdy))&&(boxMove))) {
		totalScrollLeft=0;
		totalScrollTop=0;
		
		iterElem=curSrcElem;
		while(iterElem) {
			if(!isNaN(parseInt(iterElem.scrollTop)))
				totalScrollTop+=parseInt(iterElem.scrollTop);
			if(!isNaN(parseInt(iterElem.scrollLeft)))
				totalScrollLeft+=parseInt(iterElem.scrollLeft);
			iterElem=iterElem.parentNode;			
		}
		boxLeft=Left(curBoxElem)-totalScrollLeft;
		boxRight=parseInt(Left(curBoxElem)+curBoxElem.offsetWidth)-totalScrollLeft;
		boxTop=Top(curBoxElem)-totalScrollTop;
		boxBottom=parseInt(Top(curBoxElem)+curBoxElem.offsetHeight)-totalScrollTop;
		doCheck();
	}
	
	if (boxMove&&curBoxElem) {		
		mouseX=evt.pageX?evt.pageX-document.body.scrollLeft:evt.clientX-document.body.clientLeft;
		mouseY=evt.pageY?evt.pageY-document.body.scrollTop:evt.clientY-document.body.clientTop;
		if ((curBoxElem)&&(curBoxElem.windowLock)) {
			mouseY < -oy?lockY=-mouseY-oy:lockY=0;
			mouseX < -ox?lockX=-mouseX-ox:lockX=0;
			mouseY > (document.body.clientHeight-oDv.offsetHeight-oy)?lockY=-mouseY+document.body.clientHeight-oDv.offsetHeight-oy:lockY=lockY;
			mouseX > (document.body.clientWidth-dvBdy.offsetWidth-ox)?lockX=-mouseX-ox+document.body.clientWidth-dvBdy.offsetWidth:lockX=lockX;	
		}
		oDv.style.left=((fixposx)||(fixposx==0))?fixposx:document.body.scrollLeft+mouseX+ox+lockX;
		oDv.style.top=((fixposy)||(fixposy==0))?fixposy:document.body.scrollTop+mouseY+oy+lockY;		
	}
}

function doCheck() {	
	if (   (mouseX < boxLeft)    ||     (mouseX >boxRight)     || (mouseY < boxTop) || (mouseY > boxBottom)) {
		oDv.style.visibility='hidden';
		curBoxElem=null;
	}	
}

function pauseBox() {	
	boxMove=false;
}

function isChild(s,d) {
	while(s) {
		if (s==d) 
			return true;
		s=s.parentNode;
	}
	return false;
}

var cSrc;
function checkMove(e) {
	e?evt=e:evt=event;
	cSrc=evt.target?evt.target:evt.srcElement;
	if ((!boxMove)&&(!isChild(cSrc,oDv))) {
		oDv.style.visibility='hidden';
		boxMove=true;
		curBoxElem=null;
	}
}