Note: these are the errors found on my website. I have fixed all the non-terminating tags and all the improper script declarations.

<script>
^
Error: required attribute type not specified
<SCRIPT LANGUAGE="JavaScript">
^
Error: there is no attribute LANGUAGE for this element (in this HTML version)
<SCRIPT LANGUAGE="JavaScript">
^
Error: element SCRIPT not defined in this HTML version
</script>
^
Error: end tag for element script which is not open; try removing the end tag or check for improper nesting of elements
... s.gif" width="36" height="14">
^
Error: required attribute alt not specified
... .gif" width="36" height="14">
^
Error: end tag for img omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
<img src="rss.gif" width="36" height="14">
^
start tag was here
... width: 15px; height: 25px;">
^
Error: end tag for img omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
<img src="topl.gif" alt="top left corner image" style="float ...
^
start tag was here
... width: 15px; height: 25px;">
^
Error: end tag for img omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
<img src="topr.gif" alt="top right corner image" style="floa ...
^
start tag was here
... t; width: 6px; height: 5px;">
^
Error: end tag for img omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
<img src="side.gif" alt="bottom left corner image" style="fl ...
^
start tag was here
... t; width: 6px; height: 5px;">
^
Error: end tag for img omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
<img src="side.gif" alt="bottom right corner image" style="f ...
^
start tag was here
</div>
^
Error: end tag for SCRIPT omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
<SCRIPT LANGUAGE="JavaScript">
^
start tag was here
<script>
^
Error: required attribute type not specified
<SCRIPT LANGUAGE="JavaScript">
^
Error: there is no attribute LANGUAGE for this element (in this HTML version)
<SCRIPT LANGUAGE="JavaScript">
^
Error: element SCRIPT not defined in this HTML version
</script>
^
Error: end tag for element script which is not open; try removing the end tag or check for improper nesting of elements
... s.gif" width="36" height="14">
^
Error: required attribute alt not specified
... .gif" width="36" height="14">
^
Error: end tag for img omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
<img src="rss.gif" width="36" height="14">
^
start tag was here
... width: 15px; height: 25px;">
^
Error: end tag for img omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
<img src="topl.gif" alt="top left corner image" style="float ...
^
start tag was here
... width: 15px; height: 25px;">
^
Error: end tag for img omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
<img src="topr.gif" alt="top right corner image" style="floa ...
^
start tag was here
... t; width: 6px; height: 5px;">
^
Error: end tag for img omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
<img src="side.gif" alt="bottom left corner image" style="fl ...
^
start tag was here
... t; width: 6px; height: 5px;">
^
Error: end tag for img omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
<img src="side.gif" alt="bottom right corner image" style="f ...
^
start tag was here
</div>
^
Error: end tag for SCRIPT omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
<SCRIPT LANGUAGE="JavaScript">
^
start tag was here
... l">Final Project</a></li></li></li></li>
^
Error: end tag for element li which is not open; try removing the end tag or check for improper nesting of elements
... nal Project</a></li></li></li></li>
^
Error: end tag for element li which is not open; try removing the end tag or check for improper nesting of elements
... roject</a></li></li></li></li>
^
Error: end tag for element li which is not open; try removing the end tag or check for improper nesting of elements
<SCRIPT LANGUAGE="JavaScript">
^
Error: there is no attribute LANGUAGE for this element (in this HTML version)
<SCRIPT LANGUAGE="JavaScript">
^
Error: element SCRIPT not defined in this HTML version
</script>
^
Error: end tag for element script which is not open; try removing the end tag or check for improper nesting of elements
... .php" method="post" onSubmit="return validateForm(survey);">
^
Error: there is no attribute onSubmit for this element (in this HTML version)
<!-- selection list -- >
^
Warning: s separator in comment declaration
... ultiple="multiple" size="3" />
^
Error: missing a required sub-element of select
... ultiple="multiple" size="3" />
^
Error: missing a required sub-element of select
<option id="visual">Visual experience
^
Error: element option not allowed here; assuming missing select start-tag
<option id="information">Getting the information you need
^
Error: element option not allowed here; check which elements this element may be contained within
<option id="interactive">Interactive content
^
Error: element option not allowed here; check which elements this element may be contained within
</select>
^
Error: end tag for option omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
<option id="interactive">Interactive content
^
start tag was here
</select>
^
Error: end tag for option omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
<option id="information">Getting the information you need
^
start tag was here
</select>
^
Error: end tag for option omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
<option id="visual">Visual experience
^
start tag was here
<!-- radio list -- >
^
Warning: s separator in comment declaration
<!-- check boxes -- >
^
Warning: s separator in comment declaration
<!-- name -- >
^
Warning: s separator in comment declaration
<!-- email -- >
^
Warning: s separator in comment declaration
<!-- comments -- >
^
Warning: s separator in comment declaration
... ments" id="tswcomments" cols=40 rows=4 /></textarea>
^
Error: attribute values must be quoted in XML
... d="tswcomments" cols=40 rows=4 /></textarea>
^
Error: attribute values must be quoted in XML
... " cols=40 rows=4 /></textarea>
^
Error: end tag for element textarea which is not open; try removing the end tag or check for improper nesting of elements
<!-- buttons -- >
^
Warning: s separator in comment declaration
</div>
^
Error: end tag for SCRIPT omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
<SCRIPT LANGUAGE="JavaScript">
^
start tag was here
<p><label for="browsing"><b>When browsing the web, what is m ...
^
Error: reference to non-existent ID browsing
... img src="star.png" border="0"><br>
^
Error: required attribute alt not specified
... mg src="star.png" border="0"><br>
^
Error: end tag for img omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
<a href="index.html"><img src="star.png" border="0"><br>
^
start tag was here
... rc="star.png" border="0"><br>
^
Error: end tag for br omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
... mg src="star.png" border="0"><br>
^
start tag was here
... l">Final Project</a></li></li></li></li>
^
Error: end tag for element li which is not open; try removing the end tag or check for improper nesting of elements
... nal Project</a></li></li></li></li>
^
Error: end tag for element li which is not open; try removing the end tag or check for improper nesting of elements
... roject</a></li></li></li></li>
^
Error: end tag for element li which is not open; try removing the end tag or check for improper nesting of elements
<SCRIPT LANGUAGE="JavaScript">
^
Error: there is no attribute LANGUAGE for this element (in this HTML version)
<SCRIPT LANGUAGE="JavaScript">
^
Error: element SCRIPT not defined in this HTML version
</script>
^
Error: end tag for element script which is not open; try removing the end tag or check for improper nesting of elements
</div>
^
Error: end tag for SCRIPT omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
<SCRIPT LANGUAGE="JavaScript">
^
start tag was here
... img src="star.png" border="0"><br>
^
Error: required attribute alt not specified
... mg src="star.png" border="0"><br>
^
Error: end tag for img omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
<a href="index.html"><img src="star.png" border="0"><br>
^
start tag was here
... rc="star.png" border="0"><br>
^
Error: end tag for br omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
... mg src="star.png" border="0"><br>
^
start tag was here
... l">Final Project</a></li></li></li></li>
^
Error: end tag for element li which is not open; try removing the end tag or check for improper nesting of elements
... nal Project</a></li></li></li></li>
^
Error: end tag for element li which is not open; try removing the end tag or check for improper nesting of elements
... roject</a></li></li></li></li>
^
Error: end tag for element li which is not open; try removing the end tag or check for improper nesting of elements
<SCRIPT LANGUAGE="JavaScript">
^
Error: there is no attribute LANGUAGE for this element (in this HTML version)
<SCRIPT LANGUAGE="JavaScript">
^
Error: element SCRIPT not defined in this HTML version
</script>
^
Error: end tag for element script which is not open; try removing the end tag or check for improper nesting of elements
</div>
^
Error: end tag for SCRIPT omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
<SCRIPT LANGUAGE="JavaScript">
^
start tag was here
... img src="star.png" border="0"><br>
^
Error: required attribute alt not specified
... mg src="star.png" border="0"><br>
^
Error: end tag for img omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
<a href="index.html"><img src="star.png" border="0"><br>
^
start tag was here
... rc="star.png" border="0"><br>
^
Error: end tag for br omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
... mg src="star.png" border="0"><br>
^
start tag was here
... l">Final Project</a></li></li></li></li>
^
Error: end tag for element li which is not open; try removing the end tag or check for improper nesting of elements
... nal Project</a></li></li></li></li>
^
Error: end tag for element li which is not open; try removing the end tag or check for improper nesting of elements
... roject</a></li></li></li></li>
^
Error: end tag for element li which is not open; try removing the end tag or check for improper nesting of elements
<SCRIPT LANGUAGE="JavaScript">
^
Error: there is no attribute LANGUAGE for this element (in this HTML version)
<SCRIPT LANGUAGE="JavaScript">
^
Error: element SCRIPT not defined in this HTML version
</script>
^
Error: end tag for element script which is not open; try removing the end tag or check for improper nesting of elements
</div>
^
Error: end tag for SCRIPT omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
<SCRIPT LANGUAGE="JavaScript">
^
start tag was here
... img src="star.png" border="0"><br>
^
Error: required attribute alt not specified
... mg src="star.png" border="0"><br>
^
Error: end tag for img omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
<a href="index.html"><img src="star.png" border="0"><br>
^
start tag was here
... rc="star.png" border="0"><br>
^
Error: end tag for br omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
... mg src="star.png" border="0"><br>
^
start tag was here
... l">Final Project</a></li></li></li></li>
^
Error: end tag for element li which is not open; try removing the end tag or check for improper nesting of elements
... nal Project</a></li></li></li></li>
^
Error: end tag for element li which is not open; try removing the end tag or check for improper nesting of elements
... roject</a></li></li></li></li>
^
Error: end tag for element li which is not open; try removing the end tag or check for improper nesting of elements
<SCRIPT LANGUAGE="JavaScript">
^
Error: there is no attribute LANGUAGE for this element (in this HTML version)
<SCRIPT LANGUAGE="JavaScript">
^
Error: element SCRIPT not defined in this HTML version
</script>
^
Error: end tag for element script which is not open; try removing the end tag or check for improper nesting of elements
... cally through this code: <xmp><script type="text/javascript" ...
^
Error: element xmp not defined in this HTML version
</p>
^
Error: end tag for element p which is not open; try removing the end tag or check for improper nesting of elements
</div>
^
Error: end tag for SCRIPT omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
<SCRIPT LANGUAGE="JavaScript">
^
start tag was here
... img src="star.png" border="0"><br>
^
Error: required attribute alt not specified
... mg src="star.png" border="0"><br>
^
Error: end tag for img omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
<a href="index.html"><img src="star.png" border="0"><br>
^
start tag was here
... rc="star.png" border="0"><br>
^
Error: end tag for br omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
... mg src="star.png" border="0"><br>
^
start tag was here
... l">Final Project</a></li></li></li></li>
^
Error: end tag for element li which is not open; try removing the end tag or check for improper nesting of elements
... nal Project</a></li></li></li></li>
^
Error: end tag for element li which is not open; try removing the end tag or check for improper nesting of elements
... roject</a></li></li></li></li>
^
Error: end tag for element li which is not open; try removing the end tag or check for improper nesting of elements
<SCRIPT LANGUAGE="JavaScript">
^
Error: there is no attribute LANGUAGE for this element (in this HTML version)
<SCRIPT LANGUAGE="JavaScript">
^
Error: element SCRIPT not defined in this HTML version
</script>
^
Error: end tag for element script which is not open; try removing the end tag or check for improper nesting of elements
<ul>
^
Error: element ul not allowed here; possible cause is an inline element containing a block-level element
<ul>
^
Error: element ul not allowed here; possible cause is an inline element containing a block-level element
<img src="map.gif">
^
Error: required attribute alt not specified
<img src="map.gif">
^
Error: end tag for img omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
<img src="map.gif">
^
start tag was here
<ul>
^
Error: element ul not allowed here; possible cause is an inline element containing a block-level element
<ul>
^
Error: element ul not allowed here; possible cause is an inline element containing a block-level element
<ul>
^
Error: element ul not allowed here; possible cause is an inline element containing a block-level element
</div>
^
Error: end tag for SCRIPT omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
<SCRIPT LANGUAGE="JavaScript">
^
start tag was here
Congratulations, no errors!
Congratulations, no errors!
... img src="star.png" border="0"><br>
^
Error: required attribute alt not specified
... mg src="star.png" border="0"><br>
^
Error: end tag for img omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
<a href="index.html"><img src="star.png" border="0"><br>
^
start tag was here
... rc="star.png" border="0"><br>
^
Error: end tag for br omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
... mg src="star.png" border="0"><br>
^
start tag was here
... l">Final Project</a></li></li></li></li>
^
Error: end tag for element li which is not open; try removing the end tag or check for improper nesting of elements
... nal Project</a></li></li></li></li>
^
Error: end tag for element li which is not open; try removing the end tag or check for improper nesting of elements
... roject</a></li></li></li></li>
^
Error: end tag for element li which is not open; try removing the end tag or check for improper nesting of elements
<SCRIPT LANGUAGE="JavaScript">
^
Error: there is no attribute LANGUAGE for this element (in this HTML version)
<SCRIPT LANGUAGE="JavaScript">
^
Error: element SCRIPT not defined in this HTML version
</script>
^
Error: end tag for element script which is not open; try removing the end tag or check for improper nesting of elements
<map name="nav">
^
Error: required attribute id not specified
</div>
^
Error: end tag for SCRIPT omitted; end tags are required in XML for non-empty elements; empty elements require an end tag or the start tag must end with />
<SCRIPT LANGUAGE="JavaScript">
^
start tag was here
<html>
^
Error: missing document type declaration; assuming HTML 4.01 Transitional
<body>
^
Error: element BODY not allowed here; check which elements this element may be contained within
<xmp>
^
Error: element XMP not defined in this HTML version
<html>
^
Error: element HTML not allowed here; check which elements this element may be contained within
<html>
^
Error: HTML not finished but document ended
<html>
^
Error: HTML not finished but document ended
<script>
^
Error: required attribute type not specified
Checked 13 pages.