/* This script and many more are available free online at
The JavaScript Source :: http://javascript.internet.com
Created by: Arc90, Inc. :: http://arc90.com/
Licensed under: Creative Commons License */

 /* Globals */
var arc90_navigator = navigator.userAgent.toLowerCase();
var arc90_isOpera = arc90_navigator.indexOf('opera') >= 0? true: false;
var arc90_isIE = arc90_navigator.indexOf('msie') >= 0 && !arc90_isOpera? true: false;
var arc90_isSafari = arc90_navigator.indexOf('safari') >= 0 || arc90_navigator.indexOf('khtml') >= 0? true: false;

function arc90_imgcaption() {
 var O = document.getElementsByTagName('P'); // For safari???
 for (var i = 0, l = O.length; i < l; i++)
 O[i].appendChild(arc90_newNode('span'));

 var O = document.getElementsByTagName('IMG');
 for (i = 0, l = O.length; i < l; i++) {
  var o = O[i];
  if (o != null && o.className && o.className.indexOf('imgcaption') >= 0) {
   try {
    var f = o.className.replace(/(.*)float(l|r)(.*)/, '$2');
    var s = arc90_newNode('div', 'arc90_imcaption'+ i, 'arc90_imgcaption'+ (f.length == 1? ' float'+ f: ' floatl'));

    var I = o.cloneNode(true);
    I.className = 'arc90_imgcaptionIMG';

    s.appendChild(I);

    var x = arc90_newNode('p', '', 'arc90_imgcaptionTXT');
    var y = arc90_newNode('p', '', 'arc90_imgcaptionALT');
    var z = arc90_newNode('span', '', 'arc90_imgcaptionALT');

    if (o.alt != '') {
     z.innerHTML = arc90_gtlt(o.alt);
     y.appendChild(z);
     s.appendChild(y);
    }

    if (o.title != '') {
     x.innerHTML = arc90_gtlt(o.title);
     s.appendChild(x);
    }

    o.parentNode.insertBefore(s, o);
    o.parentNode.removeChild(o);

    if (document.all || arc90_isSafari) {
     var w = parseInt(I.offsetWidth);
     if (w != '')
      s.style.width = w +'px';
    } else {
     w = arc90_getStyle(I, 'width', 'width');
     if (w != '') {
      s.style.width = (parseInt(w)) + 'px';
      x.style.width = (parseInt(w)) + 'px';
      y.style.width = (parseInt(w)) + 'px';
     }
    }
   } catch (err) { o = null; }
  }
 }
 var O = document.getElementsByTagName('P'); // For safari???
 for (i = 0, l = O.length; i < l; i++)
  O[i].appendChild(arc90_newNode('span'));
}

function arc90_gtlt(s) {
 s = s.replace(/&gt;/g, '>');
 s = s.replace(/&lt;/g, '<');
 return s;
}

function arc90_getStyle(obj, styleIE, styleMoz) {
 if (arc90_isString(obj))
  obj = document.getElementById(obj);
 if (window.getComputedStyle)
  return document.defaultView.getComputedStyle(obj, null).getPropertyValue(styleMoz);
 else
  if (obj.currentStyle)
   return obj.currentStyle[styleIE];
}

function arc90_findDimension(obj, pType) {
 if (arc90_isString(obj))
  obj = document.getElementById(obj);
 var cur = 0;
 if(obj.offsetParent)
  while(obj.offsetParent) {
   switch(pType.toLowerCase()) {
    case "width":
     cur += obj.offsetWidth; break;
    case "height":
     cur += obj.offsetHeight; break;
    case "top":
     cur += obj.offsetTop; break;
    case "left":
     cur += obj.offsetLeft; break;
   }
   obj = obj.offsetParent;
  }
 return cur;
}

/* Events */
function arc90_isString(o) {
 return (typeof(o) == "string"); 
}

function arc90_addEvent(e, meth, func, cap) {
 if (arc90_isString(e)) e = document.getElementById(e);

 if (e.addEventListener){
  e.addEventListener(meth, func, cap);
  return true;
 } else
  if (e.attachEvent)
   return e.attachEvent("on"+ meth, func);
 return false;
}

/* Nodes */
function arc90_newNode(t, i, s, x, c) {
 var node = document.createElement(t);
 if (x != null && x != '') {
  var n = document.createTextNode(x);
  node.appendChild(n);
 }
 if (i != null && i != '')
  node.id = i;
 if (s != null && s != '')
  node.className = s;
 if (c != null && c != '')
  node.appendChild(c);
 return node;
}

/* Onload */
arc90_addEvent(window, 'load', arc90_imgcaption);