/* --- BoxOver ---
/* --- v 1.2 February 5th 2005
By Oliver Bryant with help of Matthew Tagg
http://boxover.swazz.org */

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

function init() {
        oDv.appendChild(dvHdr);
        oDv.appendChild(dvBdy);
        oDv.style.position="absolute";
        oDv.style.visibility='hidden';
        document.body.appendChild(oDv);
}

function defHdrStyle() {
        dvHdr.innerHTML='<img style="vertical-align:middle">&nbsp;&nbsp;'+dvHdr.innerHTML;
        dvHdr.style.fontWeight='bold';
        dvHdr.style.width='180';
        dvHdr.style.fontFamily='arial';
        dvHdr.style.border='1px solid #EE9F28';
        dvHdr.style.padding='2';
        dvHdr.style.fontSize='12px';
        dvHdr.style.color='#FFFFFF';
        dvHdr.style.background='#FEAD0E';
        dvHdr.style.filter='alpha(opacity=93)'; // IE
        dvHdr.style.opacity='0.93'; // Firefox
}

function defBdyStyle() {
        dvBdy.style.borderBottom='1px solid #B0B0B0';
        dvBdy.style.borderLeft='1px solid #B0B0B0';
        dvBdy.style.borderRight='1px solid #B0B0B0';
        dvBdy.style.width='180';
        dvBdy.style.fontFamily='arial';
        dvBdy.style.fontSize='12px';
        dvBdy.style.padding='2';
        dvBdy.style.color='#202030';
        dvBdy.style.background='#C0C0C5';
        dvBdy.style.filter='alpha(opacity=93)'; // IE
        dvBdy.style.opacity='0.93'; // 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;
        }
}