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<SCRIPT>
function doShow(){
showA.innerHTML='document.getElementsById("id2").innerText='+document.getElementById("id2").innerText;
}
</SCRIPT>
<DIV id="id1">À̼ø½Å</DIV>
<DIV id="id2">È«±æµ¿</DIV>
<DIV id="id3">Lincon</DIV>
<INPUT type="button" value="id ¾ò±â" onclick="doShow()">
<DIV id=showA>°á°ú Ç¥½Ãâ</DIV>