ECSHOP 商品详情页购买数量 添加加减按钮

<input name="number" type="text" id="number" value="1" size="4" onblur="changePrice()" style="border:1px solid #ccc; "/>

修改为

<span class="goods_cut"
_src="images/plus1.gif"
alt="减少" width="15" height="15" /></span>
<input name="number" type="text" id="number" value="1" size="4" onblur="changePrice()" style="border:1px solid #ccc; "/>
<span class="goods_add"
_src="images/plus2.gif"
alt="增加" width="15" height="15" /></span>

再添加js脚本
复制代码

<script language="javascript" type="text/javascript">

function goods_cut(){

var num_val=document.getElementById('number');

var new_num=num_val.value;

var Num = parseInt(new_num);

if(Num>1)Num=Num-1;

num_val.value=Num;

}

function goods_add(){

var num_val=document.getElementById('number');

var new_num=num_val.value;

var Num = parseInt(new_num);

Num=Num+1;

num_val.value=Num;

}
</script>

复制代码

再添加CSS样式
复制代码

/*--------------商品详情页增加减少-------------*/
.goods_gds {
height:35px;
display:block;
overflow:hidden;
}
.goods_font {
display:block;
float:left;
height:15px;
margin:8px 3px 0;
font-size:12px;
}
.goods_cut {
border:0 none;
cursor:pointer;
display:block;
float:left;
font-size:0;
height:15px;
line-height:0;
margin:8px 3px 0;
width:15px;
padding-right:0px;
_padding-right:0px;
}
input.goodsBuyBox,input.number {
border:1px solid #DDDDDD;
float:left;
font-size:10px;
height:18px;
line-height:18px;
margin:5px 5px 5px 5px;
padding:0;
text-align:center;
}
.goods_add {
border:0 none;
cursor:pointer;
display:block;
float:left;
font-size:0;
height:15px;
line-height:0;
margin:8px 3px 0;
width:15px;
}
.goods_number_tit{
display: block;
background:none;
text-align:left;
padding-left:5px;
}