Javascriptでの画像置換 - 思い描いたものをかたちにする

html&cssの画像置換

<html>
<head>
<style type="text/css">

ul{
	width: 800px;
	margin: 50px 0 0 50px;
	list-style: none;
	overflow: hidden;
	}
li{
	float: left;
	display: inline;
	}
li a{
	width: 160px;
	height: 50px;
	display: block;
	text-decoration: none;
	float: left;
	display: inline;
	}
li#home a{
	background: #ffffff url(Js_button/button_01.png) no-repeat top left;
	}
li#home a:hover{
	background: url(Js_button/button_01_o.png) no-repeat top left;
	}
li#html a{
	background: #ffffff url(Js_button/button_02.png) no-repeat top left;
	}
li#html a:hover{
	background: url(Js_button/button_02_o.png) no-repeat top left;
	}
li#as a{
	background: #ffffff url(Js_button/button_03.png) no-repeat top left;
	}
li#as a:hover{
	background: url(Js_button/button_03_o.png) no-repeat top left;
	}
li#js a{
	background: #ffffff url(Js_button/button_04.png) no-repeat top left;
	}
li#js a:hover{
	background: url(Js_button/button_04_o.png) no-repeat top left;
	}
li#ph a{
	background: #ffffff url(Js_button/button_05.png) no-repeat top left;
	}
li#ph a:hover{
	background: url(Js_button/button_05_o.png) no-repeat top left;
	}
em{
	visibility: hidden;
	}
</style>
</head>
<body>
<ul>
	<li id="home"><a href=""><em>Home</em></a></li>
	<li id="html"><a href=""><em>Html&Css</em></a></li>
	<li id="as"><a href=""><em>ActionScript</em></a></li>
	<li id="js"><a href=""><em>JavaScript</em></a></li>
	<li id="ph"><a href=""><em>PHP</em></a></li>
</ul>
</body>
</html>

簡単なjavascriptの画像置換

<html>
<head>
<style type="text/css">
ul{
	width: 800px;
	margin: 50px 0 0 50px;
	list-style: none;
	overflow: hidden;
}
li{
	float: left;
	list-style: none;
	display: inline;
	}
</style>
</head>
<body>
<ul>
<li><a href=""><img src="Js_button/button_01.png" alt="" width="160" height="50" 
onMouseOver="this.src='Js_button/button_01_o.png'" 
onMouseOut="this.src='Js_button/button_01.png'"></a></li>
<li><a href=""><img src="Js_button/button_02.png" alt="" width="160" height="50" 
onMouseOver="this.src='Js_button/button_02_o.png'" 
onMouseOut="this.src='Js_button/button_02.png'"></a></li>
<li><a href=""><img src="Js_button/button_03.png" alt="" width="160" height="50" 
onMouseOver="this.src='Js_button/button_03_o.png'" 
onMouseOut="this.src='Js_button/button_03.png'"></a></li>
<li><a href=""><img src="Js_button/button_04.png" alt="" width="160" height="50" 
onMouseOver="this.src='Js_button/button_04_o.png'" 
onMouseOut="this.src='Js_button/button_04.png'"></a></li>
<li><a href=""><img src="Js_button/button_05.png" alt="" width="160" height="50" 
onMouseOver="this.src='Js_button/button_05_o.png'" 
onMouseOut="this.src='Js_button/button_05.png'"></a></li>
</ul>
</body>
</html>

Dreamweaverビヘイビアでの画像置換

これはうまくいかない

<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<title></title>
<style>
	*{
		margin: 0;
		padding: 0;
		}
	ul{
		margin: 50px 0 0 50px;
		}
    ul li{
		list-style: none;
		float: left;
		}
    </style>
    <script type="text/javascript">
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
    </script>
</head>
<body onmouseover="MM_swapImage('home','','Js_button/button_01_o.png','html','','Js_button/button_02_o.png','as','','Js_button/button_04_o.png','js','','Js_button/button_03_o.png','php','','Js_button/button_05_o.png',0)" onmouseout="MM_swapImage('home','','Js_button/button_01.png','html','','Js_button/button_02.png','as','','Js_button/button_04.png','js','','Js_button/button_03.png','php','','Js_button/button_05.png',1)">
<ul>
	<li><a href="#"><img src="Js_button/button_01.png" id="home" width="160" height="50" alt="home"></a></li>
	<li><a href="#"><img src="Js_button/button_02.png" id="html" width="160" height="50" alt="html"></a></li>
	<li><a href="#"><img src="Js_button/button_04.png" id="as" width="160" height="50"></a></li>
	<li><a href="#"><img src="Js_button/button_03.png" id="js" width="160" height="50" alt="js"></a></li>
	<li><a href="#"><img src="Js_button/button_05.png" id="php" width="160" height="50" alt="php"></a></li>
</ul>
</body>
</html>