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An example of simple folding and opening!

Source: Internet
Author: User
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<! Doctype HTML public "-// W3C // dtd html 4.0 transitional // en">
<HTML>
<Head>
<Title> </title>
<Meta name = "generator" content = "Microsoft Visual Studio. NET 7.1">
<Meta name = "vs_targetschema" content = "http://schemas.microsoft.com/intellisense/ie5">
<Script language = JavaScript>
Function b1_onclick ()
{
If (b1.innertext = "+ ")
{
List1.style. Display = "Block ";
B1.innertext = "-";
}

Else if (b1.innertext = "-")
{
List1.style. Display = "NONE ";
B1.innertext = "+ ";

}
}
</SCRIPT>
</Head>
<Body>
<Span id = b1 style = "border-Right: thin Ridge; border-top: thin Ridge; border-left: thin Ridge; cursor: hand; border-bottom: thin Ridge; boder: thin "Language = JavaScript onclick =" b1_onclick () ">-</span> list1 <br> // use span to control
<Ul id = list1> // note that you must have an ID for JS control.
<Li> <font face = ""> Item1 </font> </LI>
<Li> <font face = ""> item2 </font> </LI>
<Li> <font face = ""> item3 </font> </LI>
</Ul>
<P> <font face = ""> list2 </font> </P>
</Body>
</Html>

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