<HTML>
<BODY>
<center>
<form>
<table border=1 cellpadding=4>
<tr><td colspan=2 bgcolor=blue align=center>
<input type=text name=amount value=0 size=6>
</td></tr>
<tr><td align=center>
<input type=button value="+" onClick="javascript:this.form.amount.value++;">
<input type=button value="−" onClick="javascript:this.form.amount.value--;">
</td></tr></table>
</form>
</center>
</BODY>
</HTML>
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