function $_(x){
    return document.getElementById(x);
}
function showHeadOut(obj){
	obj.src=obj.src.replace("Over","");
}

function showMenu(menuName,isIndex){
	var obj=$_("menu"+menuName);
	var href = document.getElementById("menu"+menuName).getElementsByTagName('a'); 
	for(key in href) 
		{ 
			href[key].className = "menucolor"; 
		} 
 
	//alert("menu"+menuName);
	//href.className = "pageon";
	var objList=$_("menuList");
	if(obj){
		obj.className="dhhome";
	}
}
//PNGIE6͸Ã÷
var arVersion = navigator.appVersion.split("MSIE")
var version = parseFloat(arVersion[1])
function fixPNG(myImage) 
{
    if ((version >= 5.5) && (version < 7) && (document.body.filters)) 
    {
       var imgID = (myImage.id) ? "id='" + myImage.id + "' " : ""
    var imgClass = (myImage.className) ? "class='" + myImage.className + "' " : ""
    var imgTitle = (myImage.title) ? 
               "title='" + myImage.title   + "' " : "title='" + myImage.alt + "' "
    var imgStyle = "display:inline-block;" + myImage.style.cssText
    var strNewHTML = "<span " + imgID + imgClass + imgTitle
                   + " style=\"" + "width:" + myImage.width 
                   + "px; height:" + myImage.height 
                   + "px;" + imgStyle + ";"
                   + "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
                   + "(src=\'" + myImage.src + "\', sizingMethod='scale');\"></span>"
     myImage.outerHTML = strNewHTML    
    }
}