检测鼠标的右键和左键和中间

<script src="../../scripts/jquery.js" type="text/javascript"></script>
<style>
#XY{
    width:40px;
    height:100px;
    background:#aaa;
}
</style>

<div id="XY" class="box"></div>

<script>
$(document).ready(function() {  
    $("#XY").mousedown(function(e){
        alert(e.which)  // 1 = 鼠标左键 ; 2 = 鼠标中键; 3 = 鼠标右键
    })
});

</script>