日期:2014-05-16 浏览次数:20374 次
<table width="250" border="0" cellspacing="0" cellpadding="0">
<tr>
<td width="60" rowspan="2"><input name="shuliang" type="text" class="shuliang" id="shuliang" value="1" size="8" maxlength="3" /></td>
<td><img src="images/add.gif" width="28" height="15" border="0" style="cursor:pointer" onclick="javascript:add();" /></td>
<td rowspan="2" class="huise">库存 999件 </td>
</tr>
<tr>
<td><img src="images/minus.gif" width="28" height="15" style="cursor:pointer" onclick="javascript:minus();" /></td>
</tr>
</table>
<script language=javascript>
var shuliang=document.getElementById("shuliang").value;
function add()
{
alert("111");
if(shuliang != '' && !isNaN(shuliang)){
document.getElementById("shuliang").value = shuliang + 1;
}else{
document.getElementById("shuliang").value = 1;
}
}
function minus()
{
if(shuliang != '' && !isNaN(shuliang)){
document.getElementById("shuliang").value = shuliang - 1;
}else{
document.getElementById("shuliang").value = 1;
}
}
}
</script>