JavaScript selects a drop-down list item and a new window pops up to open the connection page

<script language="javascript">
<!--
function formaction()
{
    ｓｅｌｅｃｔObj = document.getElementById("friendlink");
    //alert();
    if(ｓｅｌｅｃｔObj.options[ｓｅｌｅｃｔObj.ｓｅｌｅｃｔedIndex].value!=''){
    //alert(ｓｅｌｅｃｔObj.options[ｓｅｌｅｃｔObj.ｓｅｌｅｃｔedIndex].value);
    //window.open(ｓｅｌｅｃｔObj.options[ｓｅｌｅｃｔObj.ｓｅｌｅｃｔedIndex].value);
    document.getElementById("friendlinkform").action=ｓｅｌｅｃｔObj.options[ｓｅｌｅｃｔObj.ｓｅｌｅｃｔedIndex].value;
    friendlinkform.submit();
    }
}
-->
</script>
<form action="" target="_blank" id="friendlinkform" name="friendlinkform">
</form>
<ｓｅｌｅｃｔ name="friendlink" onChange="javascript:formaction();">
<option>==友情链接==</option>
<option value="http://code.knowsky.com"><a href="http://code.knowsky.com" target="_blank">code.knowsky.com</a></option>
</ｓｅｌｅｃｔ>

请将全角ｓｅｌｅｃｔ替换为半角。