<input type=text id=otext><input type=button onclick="searchIn(otext.value)" value="search">
<script>
function searchIn(key)
{
location.href="http://www.baidu.com/s?ie=gb2312&bs=adafdf&sr=&z=&cl=3&f=8&wd="+key+"&ct=0";
}
</script>
<script>
function searchIn(key)
{
location.href="http://www.baidu.com/s?ie=gb2312&bs=adafdf&sr=&z=&cl=3&f=8&wd="+key+"&ct=0";
}
</script>
<form action="http://www.google.cn">
...
注意表单的名字一定与别人的完全一致