My contact form is not working.

Here is my html code for my contact form which is located in Contact.htm :

<form method="POST" action="contact.php">

<p>Name:<br>

<input type="text" name="Name:">

<p>Company:<br>

<input type="text" name="Company:">

<p>Phone:<br>

<input type="text" name="Phone:">

<p>Email:<br>

<input type="text" name="Email:">

<p>Comments:<br>

  <textarea name="Comments:" cols="45" rows="5"></textarea>

<p><input type="submit" name="submit" value="Submit">

</form>

Here is my code which is located in my php file contact.php :

<?php

mb_http_input("UTF-8");

mb_http_output("UTF-8");

$EmailFrom = Trim(stripslashes($_POST['EmailFrom']));

$EmailTo = "cproett805@gmail.com";

$Subject = "Web Contact Form";

$Name: = Trim(stripslashes($_POST['Name:']));

$Company: = Trim(stripslashes($_POST['Company:']));

$Phone: = Trim(stripslashes($_POST['Phone:']));

$Email: = Trim(stripslashes($_POST['Email:']));

$Comments: = Trim(stripslashes($_POST['Comments:']));

$validationOK=true;

if (Trim($EmailFrom)=="") $validationOK=false;

if (!$validationOK) {

  print "<meta http-equiv=\"refresh\" content=\"0;URL=error.htm\">";

  exit;

}

$Body = "";

$Body .= "Name:: ";

$Body .= $Name:;

$Body .= "\n";

$Body .= "Company:: ";

$Body .= $Company:;

$Body .= "\n";

$Body .= "Phone:: ";

$Body .= $Phone:;

$Body .= "\n";

$Body .= "Email:: ";

$Body .= $Email:;

$Body .= "\n";

$Body .= "Comments:: ";

$Body .= $Comments:;

$Body .= "\n";

$success = mail($EmailTo, $Subject, $Body, "From: <$EmailFrom>");

if ($success){

  print "<meta http-equiv=\"refresh\" content=\"0;URL=ok.htm\">";

}

else{

  print "<meta http-equiv=\"refresh\" content=\"0;URL=error.htm\">";

}

?>

------------------------------------------------------------

The error I get when I submit the information on the form is:

Parse error: syntax error, unexpected ':' in D:\Hosting\5199406\html\contact.php on line 8

Line 8 = $Name: = Trim(stripslashes($_POST['Name:']));

I actually took this line out to see if it would work and then it gave me an error that Line 9 was not working...

HELP PLEASE!