js冲突怎么办

Question

以下js有冲突，怎么办？
<script type="text/javascript" src="js/jquery-1.8.3.min.js"></script>
<script type="text/javascript" src="js/responsiveslides.min.js"></script>
<script type="text/javascript">
<script src="js/jquery-1.4.2.min.js" type=text/javascript></script>
<script src="js/lanrentuku.js" type=text/javascript></script> $(function () {
$("#slider4").responsiveSlides({
maxwidth: 980,
speed: 980
});
$("#slider4").responsiveSlides({
auto: false,
pager: false,
nav: true,
speed: 500,
namespace: "callbacks",
before: function () {
$('.events').append("<li>before event fired.</li>");
},
after: function () {
$('.events').append("<li>after event fired.</li>");
}
});
});
</script>

Answer 1

<script type="text/javascript" src="js/jquery-1.8.3.min.js"></script>
 <script src="js/jquery-1.4.2.min.js" type=text/javascript></script>

两个jquery库，删掉下面的，再有问题追问