test
<html>
<head>
<script language=javascript>
function test(s){
var flag = 'row' + s;
for(var i = 0;i<document.all.length;i++){
if(flag == (document.all[i].id))
if (document.all[i].style.display=="") {
document.all[i].style.display="none";
} else{
document.all[i].style.display="";
}
}
}
</script>
</head>
<body>
<form name="form1">
<input id="x" type="text">
<div style="CURSOR: hand" onclick="test('1');"><IMG id=level1 src="images/minus.gif">public class HelloWorld{</div>
<ul id=row1>
<li>private string connString;
<div style="CURSOR: hand" onclick="test('2');"><IMG id=level2 src="images /plus.gif">public static void main(String[] arg){
</div>
<ul id=row2 style="display:none">
{...}
</ul>
<li>Other
</ul>
</form>
</body>
</html>