JavaScript - Javascript Converter Errors

Hello all. I'm so glad i found this forum!!! This looks like a great coding community. This will be my First Post.

I was wondering if you guys can help me with my weight converter. I cant seem to make it work properly on my site.

here is the code im using:

<p class="about">Convert weight measurements between U.S./Imperial and SI (Metric) units<br /> Type your value in a box, click the <input onclick="alert('Not this button!')" type="button" name="test_bt" value="Go!" /> and all unit conversions in the same category will be calculated.</p>
<form action="">
<table width="500" border="1" cellspacing="0" cellpadding="4">
<tbody>
<tr bgcolor="#0066ff"><th class="headings" colspan="3" bgcolor="#1765BB">SI (Metric)</th></tr>
<tr bgcolor="#0066ff">
<td class="headings" bgcolor="#103e78" width="288">Tonne</td>
<td class="headings" align="right" bgcolor="#103e78" width="130"><input type="text" name="mTon" size="15" /></td>
<td class="headings" bgcolor="#103e78" width="57"><input onclick="if (checkNum(mTon.value)) compute(this.form,mTon.name,weight_data)" type="button" name="mTon_bt" value="Go!" /></td>
</tr>
<tr bgcolor="#0066ff">
<td class="headings" bgcolor="#103e78" width="288">Kilogram (kg)</td>
<td class="headings" align="right" bgcolor="#103e78" width="130"><input type="text" name="mKilogram" size="15" /></td>
<td class="headings" bgcolor="#103e78" width="57"><input onclick="if (checkNum(mKilogram.value)) compute(this.form,mKilogram.name,weight_data)" type="button" name="mKilogram_bt" value="Go!" /></td>
</tr>
<tr bgcolor="#0066ff">
<td class="headings" bgcolor="#103e78" width="288">Gram (g)</td>
<td class="headings" align="right" bgcolor="#103e78" width="130"><input type="text" name="mGram" size="15" /></td>
<td class="headings" bgcolor="#103e78" width="57"><input onclick="if (checkNum(mGram.value)) compute(this.form,mGram.name,weight_data)" type="button" name="mGram_bt" value="Go!" /></td>
</tr>
<tr bgcolor="#0066ff">
<td class="headings" bgcolor="#103e78" width="288">Milligram (mg)</td>
<td class="headings" align="right" bgcolor="#103e78" width="130"><input type="text" name="mMilligram" size="15" /></td>
<td class="headings" bgcolor="#103e78" width="57"><input onclick="if (checkNum(mMilligram.value)) compute(this.form,mMilligram.name,weight_data)" type="button" name="mMilligram_bt" value="Go!" /></td>
</tr>
<tr><th class="headings" colspan="3" bgcolor="#103e78"> </th></tr>
<tr bgcolor="#0066ff"><th class="headings" colspan="3" bgcolor="#1765BB">Troy weight</th></tr>
<tr bgcolor="#0066ff">
<td class="headings" bgcolor="#103e78" width="288">Pound (lb t)</td>
<td class="headings" align="right" bgcolor="#103e78" width="130"><input type="text" name="troyPound" size="15" /></td>
<td class="headings" bgcolor="#103e78" width="57"><input onclick="if (checkNum(troyPound.value)) compute(this.form,troyPound.name,weight_data)" type="button" name="troyPound_bt" value="Go!" /></td>
</tr>
<tr bgcolor="#0066ff">
<td class="headings" bgcolor="#103e78" width="288">Ounce (oz t)</td>
<td class="headings" align="right" bgcolor="#103e78" width="130"><input type="text" name="troyOunce" size="15" /></td>
<td class="headings" bgcolor="#103e78" width="57"><input onclick="if (checkNum(troyOunce.value)) compute(this.form,troyOunce.name,weight_data)" type="button" name="troyOunce_bt" value="Go!" /></td>
</tr>
<tr bgcolor="#0066ff">
<td class="headings" bgcolor="#103e78" width="288">PennyWeight (dwt)</td>
<td class="headings" align="right" bgcolor="#103e78" width="130"><input type="text" name="troyDWT" size="15" /></td>
<td class="headings" bgcolor="#103e78" width="57"><input onclick="if (checkNum(troyDWT.value)) compute(this.form,troyDWT.name,weight_data)" type="button" name="troyDWT_bt" value="Go!" /></td>
</tr>
<tr bgcolor="#0066ff">
<td class="headings" bgcolor="#103e78" width="288">Grain<br /> Same as Avoirdupois grain</td>
<td class="headings" align="right" bgcolor="#103e78" width="130"><input type="text" name="troyGrain" size="15" /></td>
<td class="headings" bgcolor="#103e78" width="57"><input onclick="if (checkNum(troyGrain.value)) compute(this.form,troyGrain.name,weight_data)" type="button" name="troyGrain_bt" value="Go!" /></td>
</tr>
<tr bgcolor="#6699ff">
<td class="headings" colspan="3" bgcolor="#103e78"> </td>
</tr>
<tr bgcolor="#0066ff"><th class="headings" colspan="3" bgcolor="#1765BB">Avoirdupois weight</th></tr>
<tr bgcolor="#0066ff">
<td class="headings" bgcolor="#103e78">British ("long") ton</td>
<td class="headings" align="right" bgcolor="#103e78"><input type="text" name="briTon" size="15" /></td>
<td class="headings" bgcolor="#103e78"><input onclick="if (checkNum(briTon.value)) compute(this.form,briTon.name,weight_data)" type="button" name="briTon_bt" value="Go!" /></td>
</tr>
<tr bgcolor="#0066ff">
<td class="headings" bgcolor="#103e78">US ("short") ton</td>
<td class="headings" align="right" bgcolor="#103e78"><input type="text" name="usTon" size="15" /></td>
<td class="headings" bgcolor="#103e78"><input onclick="if (checkNum(usTon.value)) compute(this.form,usTon.name,weight_data)" type="button" name="usTon_bt" value="Go!" /></td>
</tr>
<tr bgcolor="#0066ff">
<td class="headings" bgcolor="#103e78" height="42">British ("long") hundredweight (cwt)</td>
<td class="headings" align="right" bgcolor="#103e78" height="42"><input type="text" name="briCWT" size="15" /></td>
<td class="headings" bgcolor="#103e78" height="42"><input onclick="if (checkNum(briCWT.value)) compute(this.form,briCWT.name,weight_data)" type="button" name="briCWT_bt" value="Go!" /></td>
</tr>
<tr bgcolor="#0066ff">
<td class="headings" bgcolor="#103e78">US ("short") hundredweight (cwt)</td>
<td class="headings" align="right" bgcolor="#103e78"><input type="text" name="usCWT" size="15" /></td>
<td class="headings" bgcolor="#103e78"><input onclick="if (checkNum(usCWT.value)) compute(this.form,usCWT.name,weight_data)" type="button" name="usCWT_bt" value="Go!" /></td>
</tr>
<tr bgcolor="#0066ff">
<td class="headings" bgcolor="#103e78">Stone</td>
<td class="headings" align="right" bgcolor="#103e78"><input type="text" name="briStone" size="15" /></td>
<td class="headings" bgcolor="#103e78"><input onclick="if (checkNum(briStone.value)) compute(this.form,briStone.name,weight_data)" type="button" name="briStone_bt" value="Go!" /></td>
</tr>
<tr bgcolor="#0066ff">
<td class="headings" bgcolor="#103e78">Pound (lb)</td>
<td class="headings" align="right" bgcolor="#103e78"><input type="text" name="avdpPound" size="15" /></td>
<td class="headings" bgcolor="#103e78"><input onclick="if (checkNum(avdpPound.value)) compute(this.form,avdpPound.name,weight_data)" type="button" name="avdpPound_bt" value="Go!" /></td>
</tr>
<tr bgcolor="#0066ff">
<td class="headings" bgcolor="#103e78">Ounce (oz)</td>
<td class="headings" align="right" bgcolor="#103e78"><input type="text" name="avdpOunce" size="15" /></td>
<td class="headings" bgcolor="#103e78"><input onclick="if (checkNum(avdpOunce.value)) compute(this.form,avdpOunce.name,weight_data)" type="button" name="avdpOunce_bt" value="Go!" /></td>
</tr>
<tr bgcolor="#0066ff">
<td class="headings" bgcolor="#103e78">Dram (dr)</td>
<td class="headings" align="right" bgcolor="#103e78"><input type="text" name="avdpDram" size="15" /></td>
<td class="headings" bgcolor="#103e78"><input onclick="if (checkNum(avdpDram.value)) compute(this.form,avdpDram.name,weight_data)" type="button" name="avdpDram_bt" value="Go!" /></td>
</tr>
<tr bgcolor="#0066ff">
<td class="headings" bgcolor="#103e78">Grain</td>
<td class="headings" align="right" bgcolor="#103e78"><input type="text" name="avdpGrain" size="15" /></td>
<td class="headings" bgcolor="#103e78"><input onclick="if (checkNum(avdpGrain.value)) compute(this.form,avdpGrain.name,weight_data)" type="button" name="avdpGrain_bt" value="Go!" /></td>
</tr>
<tr bgcolor="#0066ff">
<td class="headings" colspan="2" align="center" bgcolor="#103e78"><input onclick="resetAll(this.form)" type="button" name="res7" value="Clear all numbers" /></td>
<td class="headings" bgcolor="#103e78"> </td>
</tr>
</tbody>
</table>
<p> </p>
</form>
<p> </p>


and help will be greatly appreciated.

I imagine this would be very simple for someone who knows javascript.

I want to have three fields.

First field is "posted speed limit", second field is "actual speed" and third field will be the output field.

All the script needs to do it subtract the posted speed from the actual speed and add a ZERO to the end; which is the amount of the speeding ticket. The minimum fine is $100, however.

So, 5 miles over the speed limit would be $100 (minimum value)
15 miles over the speed limit would be $150 (add a zero)
35 miles over the speed limit would be $350.
etc.

I know very little Javascript, if anyone could help me out with this, I'd appreciate it. Thanks, Sean

here is the link where the problem persist
http://www.ornusweb.com/what_we_done.html

I have mixed 2 scripts the light box script(lightbox.js) and scroller script(scriptaculous.js)

the page only works with ie and in other browsers it opens as an image(light box wont work)

the errors say

1st error> uncaught script.aculo.us requires the prototype javaScript frame work >1.4.0
scriptaculous.load
(anonymous function)

2 error > uncaught typeErrorbject function object(){[native code]} has no method 'extends'
(anonymous function)

can some one help me solve these problem's

The validator showed up these errors on my site.
They are from a script, but I know very limited javascript to correct it, to me it seems to be OK.

1. Line 15, Column 23: character "<" is the first character of a delimiter but occurred as data

for (var i = 0; i < d.length; ++i) {

This message may appear in several cases:
* You tried to include the "<" character in your page: you should escape it as "&lt;"
* You used an unescaped ampersand "&": this may be valid in some contexts, but it is recommended to use "&amp;", which is always safe.
* Another possibility is that you forgot to close quotes in a previous tag.


2. Error Line 15, Column 23: StartTag: invalid element name

for (var i = 0; i < d.length; ++i) {

Code:

<script type="text/javascript">
  window.onload = function() {
    if (!NiftyCheck()) {
      return;
    }
    Rounded("div#nifty", "#666", "#FFF", 30, 30);
  }
  function adjustRadius() {
    d = getElementsBySelector("div.rounded");
    for (var i = 0; i < d.length; ++i) {
      d[i].parentNode.removeChild(d[i]);
    }
    var x = document.getElementById("radiusx").value;
    var y = document.getElementById("radiusy").value;
    Rounded("div#nifty", "#666", "#FFF", x, y);
    return false;
  }
</script>

Does anyone know why these errors are coming up on the WC3?

I have a loop that originally printed out a day, in a table, that linked to a new page.
Code:

out.println("<th height=100><a href=eventPage.jsp?month="+(n+1)+"&day="+d+">" + d + "</a>");

This works fine but now I want to instead have it be a link a page thats a pop up. The code I have now is as follows

Code:

out.println("<th height=100><a href="eventPage.jsp?month="+(n+1)+"&day="+d"" onclick="popUp(this.href);return false"> + d + "</a>">);

and

Code:

<script type="text/javascript">
	function popUp(URL) {
	<!--
		window.open(URL,'width=300,height=300');
	//-->
	}
</script>

I can not seem to find where I am going wrong. Any help would be appreciated.