/* --- BoxOver ---
/* --- v 2.1 17th June 2006
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);
}

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"  src="info.gif">&nbsp;&nbsp;'+dvHdr.innerHTML;
  dvHdr.style.fontWeight='bold';
  dvHdr.style.width='200px';
  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'; // FF
}

function defBdyStyle() {
  dvBdy.style.borderBottom='1px solid #A5CFE9';
  dvBdy.style.borderLeft='1px solid #A5CFE9';
  dvBdy.style.borderRight='1px solid #A5CFE9';
  dvBdy.style.width='200px';
  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'; // FF
}

function checkElemBO(txt) {
if (!txt || typeof(txt) != 'string') return false;
if ((txt.indexOf('header')>-1)&&(txt.indexOf('body')>-1)&&(txt.indexOf('[')>-1)&&(txt.indexOf('[')>-1)) 
   return true;
else
   return false;
}

function scanBO(curNode) {
    if (checkElemBO(curNode.title)) {
      curNode.boHDR=getParam('header',curNode.title);
      curNode.boBDY=getParam('body',curNode.title);
      curNode.boCSSBDY=getParam('cssbody',curNode.title);
      curNode.boCSSHDR=getParam('cssheader',curNode.title);
      curNode.IEbugfix=(getParam('hideselects',curNode.title)=='on')?true:false;
      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;
      curNode.fade=(getParam('fade',curNode.title)=='on')?true:false;
      curNode.fadespeed=(getParam('fadespeed',curNode.title)!='')?getParam('fadespeed',curNode.title):0.04;
      curNode.delay=(getParam('delay',curNode.title)!='')?parseInt(getParam('delay',curNode.title)):0;
      if (getParam('requireclick',curNode.title)=='on') {
        curNode.requireclick=true;
        document.all?curNode.attachEvent('onclick',showHideBox):curNode.addEventListener('click',showHideBox,false);
        document.all?curNode.attachEvent('onmouseover',hideBox):curNode.addEventListener('mouseover',hideBox,false);
      }
      else {// Note : if requireclick is on the stop clicks are ignored
         if (getParam('doubleclickstop',curNode.title)!='off') {
           document.all?curNode.attachEvent('ondblclick',pauseBox):curNode.addEventListener('dblclick',pauseBox,false);
         }  
         if (getParam('singleclickstop',curNode.title)=='on') {
           document.all?curNode.attachEvent('onclick',pauseBox):curNode.addEventListener('click',pauseBox,false);
         }
       }
      curNode.windowLock=getParam('windowlock',curNode.title).toLowerCase()=='off'?false:true;
      curNode.title='';
      curNode.hasbox=1;
     }
     else
        curNode.hasbox=2;   
}


function getParam(param,list) {
  var reg = new RegExp('([^a-zA-Z]' + param + '|^' + param + ')\\s*=\\s*\\[\\s*(((\\[\\[)|(\\]\\])|([^\\]\\[]))*)\\s*\\]');
  var res = reg.exec(list);
  var returnvar;
  if(res)
    return res[2].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");
  CBE.boCSSBDY?dvBdy.className=CBE.boCSSBDY:defBdyStyle();
  CBE.boCSSHDR?dvHdr.className=CBE.boCSSHDR:defHdrStyle();
  dvHdr.innerHTML=CBE.boHDR;
  dvBdy.innerHTML=CBE.boBDY;
  ah=false;
  ab=false;
  if (CBE.boHDR!='') {    
    oDv.appendChild(dvHdr);
    ah=true;
  }  
  if (CBE.boBDY!=''){
    oDv.appendChild(dvBdy);
    ab=true;
  }  
}

var CSE,iterElem,LSE,CBE,LBE, totalScrollLeft, totalScrollTop, width, height ;
var ini=false;

// Customised function for inner window dimension
function SHW() {
   if (document.body && (document.body.clientWidth !=0)) {
      width=document.body.clientWidth;
      height=document.body.clientHeight;
   }
   if (document.documentElement && (document.documentElement.clientWidth!=0) && (document.body.clientWidth + 20 >= document.documentElement.clientWidth)) {
      width=document.documentElement.clientWidth;   
      height=document.documentElement.clientHeight;   
   }   
   return [width,height];
}


var ID=null;
function moveMouse(e) {
   //boxMove=true;
  e?evt=e:evt=event;
  
  CSE=evt.target?evt.target:evt.srcElement;
  
  if (!CSE.hasbox) {
     // Note we need to scan up DOM here, some elements like TR don't get triggered as srcElement
     iElem=CSE;
     while ((iElem.parentNode) && (!iElem.hasbox)) {
        scanBO(iElem);
        iElem=iElem.parentNode;
     }     
  }
  
  if ((CSE!=LSE)&&(!isChild(CSE,dvHdr))&&(!isChild(CSE,dvBdy))){    
     if (!CSE.boxItem) {
      iterElem=CSE;
      while ((iterElem.hasbox==2)&&(iterElem.parentNode))
          iterElem=iterElem.parentNode; 
      CSE.boxItem=iterElem;
      }
    iterElem=CSE.boxItem;
    if (CSE.boxItem&&(CSE.boxItem.hasbox==1))  {
      LBE=CBE;
      CBE=iterElem;
      if (CBE!=LBE) {
        applyStyles();
        if (!CBE.requireclick)
          if (CBE.fade) {
            if (ID!=null)
              clearTimeout(ID);
            ID=setTimeout("fadeIn("+CBE.fadespeed+")",CBE.delay);
          }
          else {
            if (ID!=null)
              clearTimeout(ID);
            COL=1;
            ID=setTimeout("oDv.style.visibility='visible';ID=null;",CBE.delay);            
          }
        if (CBE.IEbugfix) {hideSelects();} 
        fixposx=!isNaN(CBE.fixX)?Left(CBE)+CBE.fixX:CBE.absX;
        fixposy=!isNaN(CBE.fixY)?Top(CBE)+CBE.fixY:CBE.absY;      
        lockX=0;
        lockY=0;
        boxMove=true;
        ox=CBE.offX?CBE.offX:10;
        oy=CBE.offY?CBE.offY:10;
      }
    }
    else if (!isChild(CSE,dvHdr) && !isChild(CSE,dvBdy) && (boxMove))  {
      // The conditional here fixes flickering between tables cells.
      if ((!isChild(CBE,CSE)) || (CSE.tagName!='TABLE')) {         
         CBE=null;
         if (ID!=null)
            clearTimeout(ID);
         fadeOut();
         showSelects();
      }
    }
    LSE=CSE;
  }
  else if (((isChild(CSE,dvHdr) || isChild(CSE,dvBdy))&&(boxMove))) {
    totalScrollLeft=0;
    totalScrollTop=0;
    
    iterElem=CSE;
    while(iterElem) {
      if(!isNaN(parseInt(iterElem.scrollTop)))
        totalScrollTop+=parseInt(iterElem.scrollTop);
      if(!isNaN(parseInt(iterElem.scrollLeft)))
        totalScrollLeft+=parseInt(iterElem.scrollLeft);
      iterElem=iterElem.parentNode;      
    }
    if (CBE!=null) {
      boxLeft=Left(CBE)-totalScrollLeft;
      boxRight=parseInt(Left(CBE)+CBE.offsetWidth)-totalScrollLeft;
      boxTop=Top(CBE)-totalScrollTop;
      boxBottom=parseInt(Top(CBE)+CBE.offsetHeight)-totalScrollTop;
      doCheck();
    }
  }
  
  if (boxMove&&CBE) {
    // This added to alleviate bug in IE6 w.r.t DOCTYPE
    bodyScrollTop=document.documentElement&&document.documentElement.scrollTop?document.documentElement.scrollTop:document.body.scrollTop;
    bodyScrollLet=document.documentElement&&document.documentElement.scrollLeft?document.documentElement.scrollLeft:document.body.scrollLeft;
    mouseX=evt.pageX?evt.pageX-bodyScrollLet:evt.clientX-document.body.clientLeft;
    mouseY=evt.pageY?evt.pageY-bodyScrollTop:evt.clientY-document.body.clientTop;
    if ((CBE)&&(CBE.windowLock)) {
      mouseY < -oy?lockY=-mouseY-oy:lockY=0;
      mouseX < -ox?lockX=-mouseX-ox:lockX=0;
      mouseY > (SHW()[1]-oDv.offsetHeight-oy)?lockY=-mouseY+SHW()[1]-oDv.offsetHeight-oy:lockY=lockY;
      mouseX > (SHW()[0]-dvBdy.offsetWidth-ox)?lockX=-mouseX-ox+SHW()[0]-dvBdy.offsetWidth:lockX=lockX;      
    }
    oDv.style.left=((fixposx)||(fixposx==0))?fixposx:bodyScrollLet+mouseX+ox+lockX+"px";
    oDv.style.top=((fixposy)||(fixposy==0))?fixposy:bodyScrollTop+mouseY+oy+lockY+"px";    
    
  }
}

function doCheck() {  
  if (   (mouseX < boxLeft)    ||     (mouseX >boxRight)     || (mouseY < boxTop) || (mouseY > boxBottom)) {
    if (!CBE.requireclick)
      fadeOut();
    if (CBE.IEbugfix) {showSelects();}
    CBE=null;
  }
}

function pauseBox(e) {
   e?evt=e:evt=event;
  boxMove=false;
  evt.cancelBubble=true;
}

function showHideBox(e) {
  oDv.style.visibility=(oDv.style.visibility!='visible')?'visible':'hidden';
}

function hideBox(e) {
  oDv.style.visibility='hidden';
}

var COL=0;
var stopfade=false;
function fadeIn(fs) {
    ID=null;
    COL=0;
    oDv.style.visibility='visible';
    fadeIn2(fs);
}

function fadeIn2(fs) {
    COL=COL+fs;
    COL=(COL>1)?1:COL;
    oDv.style.filter='alpha(opacity='+parseInt(100*COL)+')';
    oDv.style.opacity=COL;
    if (COL<1)
     setTimeout("fadeIn2("+fs+")",20);    
}


function fadeOut() {
  oDv.style.visibility='hidden';
  
}

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))) {
    fadeOut();
    if (CBE&&CBE.IEbugfix) {showSelects();}
    boxMove=true;
    CBE=null;
  }
}

function showSelects(){
   var elements = document.getElementsByTagName("select");
   for (i=0;i< elements.length;i++){
      elements[i].style.visibility='visible';
   }
}

function hideSelects(){
   var elements = document.getElementsByTagName("select");
   for (i=0;i< elements.length;i++){
   elements[i].style.visibility='hidden';
   }
}