/*--------------------------------------------------------------------------*
 *  
 *  alphafilter JavaScript Library beta7
 *  
 *  MIT-style license. 
 *  
 *  2007 Kazuma Nishihata 
 *  http://www.to-r.net
 *  
 *--------------------------------------------------------------------------*/

new function(){
  try{
    if (typeof document.body.style.maxHeight == "undefined") {//for old ie
      var elements = getElementsByClassName("alphafilter");
      for (var i=0; i<elements.length; i++) {
        var element = elements[i];
        if(element.nodeName=="IMG"){
          var newimg           = document.createElement("b");
          for(var key in element.currentStyle){
            newimg.style[key]=element.currentStyle[key];
          }
          newimg.className     = element.className;
          newimg.style.display = "inline-block";
          newimg.style.width   = element.width;
          newimg.style.height  = element.height;
          newimg.style.styleFloat   = element.align;
          newimg.style.filter  = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src="+element.src+",sizingMethod='scale')";
          element.parentNode.replaceChild(newimg,element);
        }else{
          var anchors = element.getElementsByTagName("a");
          for (var j=0; j<anchors.length; j++) {
            var anchor = anchors[j];
            anchor.style.position="relative";
          }
          var iputs = element.getElementsByTagName("input");
          for (var j=0; j<iputs.length; j++) {
            var iput = iputs[j];
            iput.style.position="relative";
          }
          var iputs = element.getElementsByTagName("textarea");
          for (var j=0; j<iputs.length; j++) {
            var iput = iputs[j];
            iput.style.position="relative";
          }
          var iputs = element.getElementsByTagName("select");
          for (var j=0; j<iputs.length; j++) {
            var iput = iputs[j];
            iput.style.position="relative";
          }
          var  newimg = element.currentStyle.backgroundImage || element.style.backgroundImage;
          newimg.match(/^url[("']+(.*\.png)[)"']+$/i)
          var newimg = RegExp.$1;
          element.style.filter ="progid:DXImageTransform.Microsoft.AlphaImageLoader(src="+newimg+",sizingMethod='scale')";
          element.style.background = "none";
        }
      }
    }
  }catch(e){}
  function getElementsByClassName(className){
    var i, j, eltClass;
    var objAll = document.getElementsByTagName ? document.getElementsByTagName("*") : document.all;
    var objCN = new Array();
    for (i = 0; i < objAll.length; i++) {
      eltClass = objAll[i].className.split(/\s+/);
      for (j = 0; j < eltClass.length; j++) {
        if (eltClass[j] == className) {
          objCN.push(objAll[i]);
          break;
        }
      }
    }
    return objCN;
  }
}