表单html
<form action="" method="post" name="add_new_report" id="add_new_report" enctype="multipart/form-data" onsubmit="return AddNewReport(this)">
<div class="field">
<div class="field_180">Cheque</div>
<div class="field_30">:</div>
<div class="field_220">
<input type="text" name="cheque" id="cheque" onChange="updatesum()" />
</div>
<div class="clear"></div>
</div>
<div class="field">
<div class="field_180">Cash</div>
<div class="field_30">:</div>
<div class="field_220">
<input type="text" name="cash" id="cash" onChange="updatesum()" />
</div>
<div class="clear"></div>
</div>
<div class="field">
<div class="field_210"> </div>
<div class="field_222">
<input type="submit" id="Submit" name="Submit" value="Submit" />
</div>
<div class="clear"></div>
</div>
</form>
在这种形式中,用户应该输入支票或现金字段怎么可能?我不想两者都是强制性的。