Google Forms redirection after submission

[HarBlalay]

I'm looking for a solution that when the form is submitted, under the submitted button appears a thank you message appears as oppose to it being redirected to the same web page as i currently have it now.I'm a novice so please provide an example, thanks.The relevant bit of script is: \[code\]<script type="text/javascript">var submitted=false;</script><iframe name="hidden_iframe" id="hidden_iframe" style="display:none;" onload="if(submitted) {window.location='http://originalblueskythinking.blogspot.co.uk/2013/01/what-drives-us- fantasies-or-dreams_22.html';}"></iframe> <form action="https://docs.google.com/spreadsheet/formResponse? formkey=dFh5VndEdW9JQzVrUU9FdjYteDNfSHc6MQ&ifq" id="ss-form" method="POST" target="hidden_iframe" onsubmit="submitted=true;"><br /><div class="errorbox-good"><div class="ss-item ss-item-required ss-radio"><div class="ss-form-entry"><label class="ss-q-title" for="entry_0"><b style="font-family: Leelawadee; text-align: justify;"><span style="color: orange; font-size: large;">What would you say you are more of, a dreamer or fantasist?&nbsp;</span></b></label><br /><label class="ss-q-title" for="entry_0"><b style="font-family: Leelawadee; text-align: justify;"><span style="color: orange; font-size: large;"><br /></span></b></label><span style="color: white;"><label class="ss-choice-label"><input class="ss-q-radio" id="group_0_1" name="entry.0.group" type="radio" value="http://stackoverflow.com/questions/14471412/I'm a dreamer and have a ideologist natural" /></label><span style="font-family: Leelawadee; text-align: justify;">I'm a dreamer and have a ideologist natural</span></span><br /> <span style="color: white; font-size: small;"><input class="ss-q-radio" id="group_0_2" name="entry.0.group" type="radio" value="http://stackoverflow.com/questions/14471412/I'm a fantasist and I find my self escaping " />&nbsp;<span style="font-family: Leelawadee; text-align: justify;">I'm a fantasist and I find my self escaping</span></span><br /><br /></div></div></div><br /><input name="pageNumber" type="hidden" value="http://stackoverflow.com/questions/14471412/0" /><input name="backupCache" type="hidden" value="" /> <br /> <div class="ss-item ss-navigate"> <div class="ss-form-entry"> <input name="submit" type="submit" value="http://stackoverflow.com/questions/14471412/Submit" /></div> </div> </form> <script type="text/javascript"> (function() { var divs = document.getElementById('ss-form'). getElementsByTagName('div'); var numDivs = divs.length; for (var j = 0; j < numDivs; j++) { if (divs[j].className == 'errorbox-bad') { divs[j].lastChild.firstChild.lastChild.focus(); return; } } for (var i = 0; i < numDivs; i++) { var div = divs; if (div.className == 'ss-form-entry' && div.firstChild && div.firstChild.className == 'ss-q-title') { div.lastChild.focus(); return; } } })(); </script></div>\[/code\]