'<form>',#
'<div id="field">',#
'<input type="text">',#
'</div>',#
'<input type="button" onclick="plus()">',#
'</form>',##

'<script>'#
'var n=0;'#
'function plus() {'#
'document.getElementById('&uf('+9F039')'field'&uf('+9F039')').innerHTML+='&uf('+9F039')'<input type="text" id="id '&uf('+9F039')  '+n+'&uf('+9F039')'">'&uf('+9F039')'; '#
'n++;'#
'}'#
'</script>'#