[SOLVED] Unexpected token ILLEGAL

[unkwntech]

I'm getting the following error on load:

Uncaught SyntaxError: Unexpected token ILLEGAL file://path/to/file.ext (line 13)

This is the code:

function changeFormLength()
{
var rows = document.getElementById('rows').value;
var i = 0;
while(i < rows)
{
                //the line under this is line 13, this line (comment) does not exist in the code
	document.getElementById('rowSpace').innerHTML += '<tr>
      <td><input type="text" name="firstname_'+i+'" id="firstname" /></td>
      <td><input type="text" name="lastname_'+i+'" id="lastname" /></td>
      <td><input name="cc_num_'+i+'" type="text" id="textfield3" size="20" maxlength="16" /></td>
      <td><label>
        <select name="cc_type_'+i+'" id="select">
          <option value="visa" selected="selected">Visa</option>
          <option value="mastercard">MasterCard</option>
          <option value="discover">Discover</option>
          <option value="amex">American Express</option>
        </select>
      </label></td>
      <td><label>
        <select name="cc_exp_m_'+i+'" id="cc_exp_m">
          <option value="01">1 January</option>
          <option value="02">2 Feburary</option>
          <option value="03">3 March</option>
          <option value="04">4 April</option>
          <option value="05">5 May</option>
          <option value="06">6 June</option>
          <option value="07">7 July</option>
          <option value="08">8 August</option>
          <option value="09">9 September</option>
          <option value="10">10 October</option>
          <option value="11">11 November</option>
          <option value="12">12 December</option>
                </select>
        /
        <select name="cc_exp_y_'+i+'" id="cc_exp_y">
          <option value="2009">2009</option>
          <option value="2010">2010</option>
          <option value="2011">2011</option>
          <option value="2012">2012</option>
          <option value="2013">2013</option>
          <option value="2014">2014</option>
          <option value="2015">2015</option>
          <option value="2016">2016</option>
          <option value="2017">2017</option>
          <option value="2018">2018</option>
          <option value="2019">2019</option>
          <option value="2020">2020</option>
        </select>
      </label></td>
      <td><input name="cc_cvv_'+i+'" type="text" id="cc_cvv" size="5" maxlength="4" /></td>
      <td><input name="amt_'+i+'" type="text" id="amt" size="10" maxlength="7" /></td>
    </tr>
';
	i++;
}
}

 

[unkwntech]

Apparently JS doesn't support multi-line string literals, so I had to add a \ to the end of each line