website content

I am trying to to create my first sidebar gadget what i would like it to do is grab certain content from a html page and dispaly it in the sidebar and be able to refresh every 5 minutes is this possible

I have gotten as far as getting the Gadget to recognize as a gadget

created a Logo
Made a XML file as shown below what i need help with is the html file to shadow the web content that i desire

< xml version="1.0" encoding="utf-8" >
<gadget>
<name>my gadget name here</name>
<namespace>my URL here</namespace>
<version>1.0.0</version>
<author name="my name here">
<info url="my Url.com here" />
<logo src="RPLogo.PNG" />
</author>
<copyright>&#169; 2007</copyright>
<description></description>
<icons>
<icon height="75" width="75" src="RPLogo.PNG" />
</icons>
<hosts>
<host name="sidebar">
<base type="HTML" apiVersion="1.0.0" src="temp.html" />
<permissions>Full</permissions>
<platform minPlatformVersion="1.0" />
</host>
</hosts>
</gadget>