/*  sIFR Lite
    Automagically replaces text with fancy flash fonts
    http://www.allcrunchy.com/Web_Stuff/sIFR_lite/
 *--------------------------------------------------------------------------*/
var fontClassFilters = [];
var Font = function(){this.init.apply(this, arguments)};
Font.prototype = {
  fontPath: '/flash/',
  init: function(swf, options){
    this.swf = this.fontPath + swf;
    this.setOptions(options || {});
    String.prototype.rgbToHex = this.rgbToHex;
    String.prototype.toHex = this.toHex;
    Array.prototype.indexOf = this.indexOf;
  },
  setOptions: function(o){
    this.options = {
      sizeAdjust: o.sizeAdjust || 0,
      color: o.color || o.sColor,
      bgcolor: o.bgcolor,
      width: o.width,
      height: o.height,
      sWmode: o.sWmode || 'transparent',
      tags: o.tags || '',
      classFilter: o.classFilter || ''
    }
    if(o.classFilter) fontClassFilters[fontClassFilters.length] = o.classFilter;
  },
  replace: function(tags){
    var tags = (tags || this.options.tags).split(',');
    for(var i=0; tag=tags[i]; i++)
      this.replaceTag(tag);
  },
  replaceTag: function(tag){
    this.replaceElements(document.getElementsByTagName(tag));
  },
  replaceElements: function(els){
    for(var i=0; el=els[i]; i++)
      this.replaceElement(el);
  },
  replaceElement: function(el){
    var o = this.options;
    if(!this.hasFlash || el.oldHTML || (!o.classFilter && this.hasClassName(el, fontClassFilters)) || (o.classFilter && el.className.indexOf(o.classFilter)==-1) ) return;
    var c = this.options.color || el.style.color || document.defaultView ? document.defaultView.getComputedStyle(el, null).color : el.currentStyle ? el.currentStyle.color : '#000001';
    if(c.indexOf('rgb') > -1) c = '#'+c.rgbToHex();
    else if(c.length == 4) c = '#'+c.charAt(1)+c.charAt(1)+c.charAt(2)+c.charAt(2)+c.charAt(3)+c.charAt(3);
    var width = o.width || (el.offsetWidth + o.sizeAdjust) * .9;//fix for ie floats
    var height = o.height || el.offsetHeight;
    var sVars = 'txt=' + escape(el.innerHTML) + '&textcolor=' + c + '&w=' + width + '&h=' + (height+o.sizeAdjust) + '';
    el.oldHTML = el.innerHTML;
    el.innerHTML = '<embed type="application/x-shockwave-flash" src="' + this.swf + '" quality="best" wmode="' + o.sWmode + '" bgcolor="' + o.bgcolor + '" flashvars="' + sVars + '" width="' + width + '" height="' + (height+o.sizeAdjust) + '" sifr="true"></embed>';
  },
  hasClassName: function(el, classNames) {
    var classNames = el.className.split(' ');
    for(var i=0; cn=classNames[i]; i++)
      if(classNames.indexOf(cn)) return true;
    return false;
  },
  indexOf: function(needle){
    for(var i=0; val=this[i]; i++)
      if(val == needle) return i;
    return -1;
  },
  toHex: function(){//borrowed from mootools.net
    var N = parseInt(this);
    if (N==0 || isNaN(N)) return "00";
    N = Math.round(Math.min(Math.max(0,N),255));
    return "0123456789abcdef".charAt((N-N%16)/16) + "0123456789abcdef".charAt(N%16);
  },
  rgbToHex: function(){//borrowed from mootools.net
    var rgb = this.match(/[rgba]{3,4}\(([\d]{0,3}),[\s]([\d]{0,3}),[\s]([\d]{0,3})\)/);
    return rgb[1].toHex()+rgb[2].toHex()+rgb[3].toHex();
  },
  hasFlash: function(){//borrowed from the original sIFR
    var nRequiredVersion = 6;
    if(navigator.appVersion.indexOf("MSIE") != -1 && navigator.appVersion.indexOf("Windows") > -1){
      document.write('<script language="VBScript"\> \non error resume next \nhasFlash = (IsObject(CreateObject("ShockwaveFlash.ShockwaveFlash." & ' + nRequiredVersion + '))) \n</script\> \n');
      if(window.hasFlash != null)
        return window.hasFlash;
    };
    if(navigator.mimeTypes && navigator.mimeTypes["application/x-shockwave-flash"] && navigator.mimeTypes["application/x-shockwave-flash"].enabledPlugin){
      var flashDescription = (navigator.plugins["Shockwave Flash 2.0"] || navigator.plugins["Shockwave Flash"]).description;
      return parseInt(flashDescription.charAt(flashDescription.indexOf(".") - 1)) >= nRequiredVersion;
    };
    return false;
  }()
}