/*--------------------------------------------------------------------------*

 *  

 *  alphafilter JavaScript Library beta5

 *  

 *  MIT-style license. 

 *  

 *  2007 Kazuma Nishihata 

 *  http://www.webcreativepark.net

 *  

 *--------------------------------------------------------------------------*/



new function(){



	if(window.addEventListener){

		window.addEventListener('load',alphafilter,false);

	}else if(window.attachEvent){

		window.attachEvent('onload',alphafilter);

	}

	

	function alphafilter(){

		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.float   = 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='image')";

					element.style.background = "none";

				}

			}

		}

	}

	

	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;

	}

}