<script src="http://jquery.com/src/latest/"></script>
<script type="text/javascript">
JQ = $; //rename $ function

</script>
<script src="prototype.js"></script>

<script src="http://jquery.com/src/latest/"></script>
<script type="text/javascript">
JQ = $; //rename $ function
</script>

<script src="prototype.js"></script>

<script type="text/javascript">
JQ(document).ready(function(){
JQ("#test_jquery").html("this is jquery");
$("test_prototype").innerHTML="this is prototype";
});
</script>
<script type="text/javascript">
JQ(document).ready(function(){
JQ("#test_jquery").html("this is jquery");
$("test_prototype").innerHTML="this is prototype";
});
</script>

<script type="text/javascript" src="jquery-1.2.6.js">
</script>
<script type="text/javascript" src="prototype-1.6.0.2.js">
</script>
<div id="test_jquery"></div>
<div id="test_prototype"></div>
<script type="text/javascript">
<!--
(function($){
$(document).ready(function(){
alert($("#test_jquery").html("this is jqeury"));
});
})(jQuery);
$("test_prototype").innerHTML="this is prototype";
//-->
</script>

<script type="text/javascript" src="jquery-1.2.6.js"> </script>
<script type="text/javascript" src="prototype-1.6.0.2.js"> </script>
<div id="test_jquery"></div>
<div id="test_prototype"></div>
<script type="text/javascript">
<!--
(function($){ $(document).ready(function(){ alert($("#test_jquery").html("this is jqeury")); }); })(jQuery); $("test_prototype").innerHTML="this is prototype"; //--> </script>

(function($){
//這里寫Jquery代碼
})(jQuery);
(function($){
//這里寫Jquery代碼 })(jQuery);