In my website: http://www.bkrenew.net16.net/bksearch.php

 

you can see the drop down box, but it cannot link to href link, i want to select the option, and then can change the website. The original source code is from this webstie:

 

http://buffernow.com/2012/08/cascading-dropdown-ajax/

 

and combine with this

 

<script language="javascript">
<!--

//Drop-down Document Viewer- © Dynamic Drive ( www.dynamicdrive.com)
//For full source code, 100's more DHTML scripts, and TOS,
//visit http://www.dynamicdrive.com

//Specify display mode (0 or 1)
//0 causes document to be displayed in an inline frame, while 1 in a new browser window
var displaymode=0
//if displaymode=0, configure inline frame attributes (ie: dimensions, intial document shown
var iframecode='<iframe id="external" style="width:95%;height:400px" src="http://www.dynamicdrive.com/faqs.htm"></iframe>'

/////NO NEED TO EDIT BELOW HERE////////////

if (displaymode==0)
document.write(iframecode)

function gone(){
var selectedurl=document.jumpy.example.options[document.jumpy.example.selectedIndex].value
if (document.getElementById&&displaymode==0)
document.getElementById("external").src=selectedurl
else if (document.all&&displaymode==0)
document.all.external.src=selectedurl
else{
if (!window.win2||win2.closed)
win2=window.open(selectedurl)
//else if win2 already exists
else{
win2.location=selectedurl
win2.focus()
}
}
}
//-->
</script><!--webbot bot="HTMLMarkup" endspan i-checksum="8709" -->

 

 

 

can anyone can help me combine together. please provide the full code, beause i am a very beginner for leaning how to design a website