我的django模板中有动态li
<script type="text/javascript" language="javascript">
function setSize(size) {
document.getElementById('id_option1').value = size;
}
function notavailable(notavai) {
alert('selected product is not available');
}
</script>
{% for i in prosize %}
{% if i.num_in_stock > 0 %}
<li><a id="{{i.option1}}1" ref="javascript:setSize('{{i.option1}}')">{{i.option1}}</a></li>
{% endif %}
{% endfor %}
我需要将背景 * 颜色 *添加到有效 链接 onclick 我已经在a上使用javascript函数。请告诉我该怎么做
答案 0 :(得分:2)
所以,很容易,在HTML标记中你有:
<a class="order" id="{{i.option1}}" href="javascript:setSize('{{i.option1}}')">{{i.option1}}</a>
id
。我从最后删除了1
。href
属性也无效。我纠正了。将您的setSize
功能更改为:
// because IE9 (and below) doesn't support for getElementsByClassName
// we use this funciton instead
// written by Jonathan Snook
// http://snook.ca/archives/javascript/your_favourite_1
function getElementsByClassName(node, classname) {
var a = [];
var re = new RegExp('\\b' + classname + '\\b');
var els = node.getElementsByTagName("*");
for(var i=0,j=els.length; i<j; i++)
if(re.test(els[i].className))a.push(els[i]);
return a;
}
function setSize(size) {
// i just comment this line as i don't know what it doesyourself
// document.getElementById('id_option1').value = size;
// change the color the others to transparent
var others = getElementsByClassName(document, 'order');
for (var i = 0, l = others.length; i < l; i++) {
others[i].style.backgroundColor = 'transparent';
}
// this line will change the background color of your element
document.getElementById(size).style.backgroundColor = '#ff6600';
}
如果您使用的是jQuery,则无需在内部使用javascript,让jQuery为您处理所有这些内容。
将此代码写在.js
文件中:
$(function () {
// get al links and attach the `click` handler to them
$('.order').on('click', function (e) {
// prevent default behaviour of link
e.preventDefault();
// get size and do something with it
var size = $(this).attr('data-size');
$('#textbox').val(size);
// change the color the others to transparent
$('.order').css('background-color', 'transparent');
// change the color of link
$(this).css('background-color', '#ff6600');
});
});
答案 1 :(得分:0)
你想要的不应该在javascript或python中实现,而是CSS。您应该在CSS中使用:active
选择器。
答案 2 :(得分:0)
在你的循环中,你也可以绑定点击事件并传递id ......如
{% for i in prosize %}
{% if i.num_in_stock > 0 %}
<li><a id="{{i.option1}}1" onclick='ChangeColor('+{{i.option1}}1+')' ref="javascript:setSize('{{i.option1}}')">{{i.option1}}</a></li>
{% endif %}
{% endfor %}
function ChangeColor(id)
{
$("#"+id).css("background","#fff");
}