HTML/CSS/CSS Attributes and Javascript Style Properties/pixelWidth
"pixelWidth" Example
<head>
<script language="JavaScript">
function function1(){
myDiv.style.pixelWidth = 200;
}
</script>
</head>
<body>
<div id="myDiv"
style="background-color:#EEEEEE;
position:absolute; width:400;
cursor:hand";
onmouseover="function1()"
onmouseout="this.style.pixelWidth=60">
Move your mouse in and out to set the pixelWidth.
</div>
</body>