HTML snippet help

Hi,

I have installed this Plugin “Insert HTML Snippet” by XYZScripts and activated it. I want to use this plugin to make a custom HTML Contact form therefore I put the HTML code inside the box (the one which I made) and than saved it. But I am facing a serious problem on the Front-end, I want to send the Message using the Send button, but the Contact form is not working.

This is the code which I have made and put inside the HTML box:

<table width="100%" border="0" cellspacing="0" cellpadding="0" id="contact">
  <tr>
    <td width="565">
		<h3>Contact Form</h3>
<div class="text16">Please fill all the fields</div>

<ul>
<li><input type="text" name="name" id="name" value="Your Name" onblur="if(this.value=='') this.value='Your Name';" onfocus="if(this.value=='Your Name') this.value='';" /></li>
<li><input type="text" name="name" id="name" value="Your Email" onblur="if(this.value=='') this.value='Your Email';" onfocus="if(this.value=='Your Email') this.value='';" /></li>
<li><input type="text" name="name" id="name" value="Your Telephone" onblur="if(this.value=='') this.value='Your Telephone';" onfocus="if(this.value=='Your Telephone') this.value='';" /></li>
<li>
<textarea name="" cols="" rows="" onblur="if(this.value=='') this.value='Message';" onfocus="if(this.value=='Message') this.value='';"
  class="inner_inputbox">Message</textarea></textarea></li>
<li><input name="Senden" type="button"  value="Senden" class="senden"/></li>
</ul>
	</td>
     </tr>
</table>
<script type='text/javascript'>
// <![CDATA[

    var frmvalidator  = new Validator("contactus");
    frmvalidator.EnableOnPageErrorDisplay();
    frmvalidator.EnableMsgsTogether();
    frmvalidator.addValidation("name","req","Please provide your name");

    frmvalidator.addValidation("email","req","Please provide your email address");

    frmvalidator.addValidation("email","email","Please provide a valid email address");

    frmvalidator.addValidation("message","maxlen=2048","The message is too long!(more than 2KB!)");
// ]]>
</script>

[Please use the code buttons – as is your code may have been damaged]

Can you please let me know, why the Contact form is not working?

Hope to hear from you soon.

Kind Regards,
roger_klear