CodingForums.com - MP3 Player Search

I'm doing some kind of MP3 Player search in javascript form using the URL from http://beemp3.com/index.php?p= then after the = any user will type the song they want to search and it'll appear as a valid URL search data under beemp3.com. The page is in http://stereowired.wehostyour.info/searchid.html. My problem is getting the value in .superform whenever the onChange occurs. this.value() doesn't work. I need some kind of alternative

thanks

oh yeah and the whole code

Code:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xml:lang="en" lang="en" xmlns="http://www.w3.org/1999/xhtml"> 

<head> 

<title>MP3 Search Engine</title> 

<style type="text/css">

*{font-family:"georgia","times new roman"}

body{padding:0;margin:0;background:#fff;color:#000;}

.center{text-align:center;width:64%;margin:0 auto;}

.formatt{width:100%;height:36px;display:block;}

.superform{float:left;width:73%;padding:5px 0;border:2px inset #a0a0a0;background:#e8e8e8;font-size:17px;color:#555;text-align:center;display:block;margin-top:1px;text-shadow:1px 1px 0 #fff;}

.superform:hover{background:#d8d8d8}

.supersubmit{float:right;width:25%;padding:5px 0;border:2px outset #333;background:#434343;font-size:17px;color:#999;display:block;margin-left:1%;text-shadow:1px 1px 0 #121212;}

.supersubmit:focus{border-style:inset;color:#fff}

#jam{width:100%;display:block;clear;both;border:0;height:600px;}

</style>

</head>

<body>

<div class="center"><h2>Stereo wired Search Engine</h2><div class="formatt">

<input class="superform" type="name" onChange="document.getElementById('jam').src="http://beemp3.com/index.php?q="+this.value()+"" /><input class="supersubmit" type="submit" value="Search" /></div>

<iframe id="jam" src="http://beemp3.com"></iframe></div>

</body></html>