Form with cookies - redirects if cookies exist

Hi everyone. I am trying to code a form that contains cookies and redirects.

This is what I want to do:

• There is a link to a pdf.
• If the person clicks the link, the form shows up and they fill out info. Then they redirect to the pdf.
• If the person views another pdf or even the same pdf later, I want to skip the form page and simply go to the pdf.

I have the cookies working for the form, but I have no idea how to make this redirect work. Any ideas or help? Thanks!

The form and cookie code:

<form name="form_test" id="form_test">

      <table>

  <tr>

          <td class="FormHeader" align="right">Name:</td>

          <td align="left"><input type="text" name="Name" size="40" maxlength="50"></td>

</tr>

<tr>

          <td class="FormHeader" align="right">Company:</td>

          <td align="left"><input type="text" name="Company" size="40" maxlength="50"></td>

</tr>

<tr>

          <td class="FormHeader" align="right">Address:</td>

          <td align="left"><input type="text" name="Address" size="40" maxlength="50"></td>

</tr>

<tr>

          <td class="FormHeader" align="right">Address 2:</td>

          <td align="left"><input type="text" name="Address2" size="40" maxlength="50"></td>

</tr>

<tr>

          <td class="FormHeader" align="right">City:</td>

          <td align="left"><input type="text" name="City" size="40" maxlength="50"></td>

</tr>

<tr>

          <td class="FormHeader" align="right">State:</td>

          <td align="left"><input type="text" name="State" size="40" maxlength="50"></td>

</tr>

<tr>

          <td class="FormHeader" align="right">Country:</td>

          <td align="left"><input type="text" name="Country" size="40" maxlength="50"></td>

</tr>

<tr>

          <td class="FormHeader" align="right">Zip:</td>

          <td align="left"><input type="text" name="Zip" size="10" maxlength="50"></td>

</tr>

<tr>

          <td class="FormHeader" align="right">Phone:</td>

          <td class="FormHeader" align="left">

                    <input type="text" name="Phone" size="15" maxlength="50">

                    Fax: <input type="text" name="Fax" size="15" maxlength="50">

          </td>

</tr>

<tr>

          <td class="FormHeader" align="right">E-Mail:</td>

          <td align="left"><input type="text" name="Email" size="40" maxlength="50"></td>

</tr>

<tr>

          <td align="right"><input type="checkbox" name="CallMe" value="Have a sales person call me" checked></td>

          <td class="FormHeader" align="left">Have a salesperson call me</td>

</tr>

<tr>

          <td align="right"><input type="checkbox" name="Catalog" value="Send me a catalog"></td>

          <td class="FormHeader" align="left">Send me a catalog</td>

</tr>

<tr>

          <td class="FormHeader" align="right">Comments:</td>

          <td align="left"><textarea cols="40" rows="3" name="Comments"></textarea></td>

</tr>

<tr>

          <td align="center" colspan="2"><br><input type="submit" name="submit" value="Submit"></td>

</tr>

</table>

</form>

<script language="javascript">

function setCookie( name, value, expires, path, domain, secure ) {

    var today = new Date();

    today.setTime( today.getTime() );

    if ( expires ) {

        expires = expires * 1000 * 60 * 60 * 24;

    }

    var expires_date = new Date( today.getTime() + (expires) );

    document.cookie = name+"="+escape( value ) +

        ( ( expires ) ? ";expires="+expires_date.toGMTString() : "" ) +

        ( ( path ) ? ";path=" + path : "" ) +

        ( ( domain ) ? ";domain=" + domain : "" ) +

        ( ( secure ) ? ";secure" : "" );

}

</script>

<script language="javascript">

function getCookie( name ) {

    var start = document.cookie.indexOf( name + "=" );

    var len = start + name.length + 1;

    if ( ( !start ) && ( name != document.cookie.substring( 0, name.length ) ) ) {

        return null;

    }

    if ( start == -1 ) return null;

    var end = document.cookie.indexOf( ";", len );

    if ( end == -1 ) end = document.cookie.length;

    return unescape( document.cookie.substring( len, end ) );

}

</script>

<script language="javascript">

function rememberFormInputs(form_id, prefix) {

    // get a reference to the form element with id 'form_test'

    var form = document.getElementById(form_id);

    // get all child input elements of the form

    var els = document.getElementsByTagName('input');

    // iterate through all form child input elements

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

        // this is the element with index of i

        var el = els.item(i);

        // make sure this is a text input field

        if (el.type == 'text') {

            // event handler to catch onblur events

            // it sets the cookie values each time you move out of an input field

            el.onblur = function() {

                // this is the name of the input field

                var name = this.name;

                // this is the value of the input field

                var value = this.value;

                // set the cookie

                setCookie( prefix + name, value);

                alert('setCookie: '+name + ' = '+value);

            };

            // this inserts all the remembered cookie values into the input fields

            var old_value = getCookie(prefix + el.name);

            if (old_value && old_value != '') {

                alert('old value remembered: '+old_value);

                el.value = old_value;

            }

        }

    }

}

</script>

<script language="javascript">

window.onload = function() {

    rememberFormInputs('form_test', 'input-');

}

function alert(str) {

    var el = document.getElementById('alert');

    if (el) {

        el.value += str+"\r\n";

    }

}

</script>