/*

Image Caption v1.3
(c) Arc90, Inc.

http://www.arc90.com
http://lab.arc90.com

Licensed under : Creative Commons Attribution 2.5 http://creativecommons.org/licenses/by/2.5/

*/

/* 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 s = arc90_newNode('div', 'arc90_imcaption'+ i, 'arc90_imgcaption'+ (f.length == 1? ' float'+ f: ' floatc'));

            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');
            
            x.className = 'arc90_imgcaptionIMGdown';
            y.className = 'arc90_imgcaptionIMGdown';
            z.className = 'arc90_imgcaptionIMGdown';

            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);