ændre href?

<a href="http://" target="_blank" id="testurl"><span id="testname">Link Name</span></a> <span id="testdes">Link Description</span><br>

<input type="text" name="linkurl" value="http://" onkeyup="testurl.skift href hvordan?=this.value"><br>

<input type="text" name="linkname" value="Link Name" onkeyup="testname.innerHTML=this.value;"><br>

<input type="text" name="linkdes" value="Link Description" onkeyup="testdes.innerHTML=this.value;">


skift href hvordan?