JS高手看看吧，我想把这个改成点击一段文字后出来右键菜单

<!DOCTYPE html>
<html>
<head>
<title>右键菜单</title>
<style>

</style>
<script type="text/javascript">
//<![CDATA[
function $(id) {
return document.getElementById(id);
};

var EventUnit = {
addHandler: function(element, type, handler) {//添加事件处理程序
if(element.addEventListener) {
element.addEventListener(type, handler, false);
} else if(element.attachEvent) {
element.attachEvent('on' + type, handler);
} else {
element['on' + type] = handler;
};
},
getEvent: function(event) {
return event ? event : window.event;
},
preventDefault: function(event) {//取消事件默认动作
if(event.preventDefault) {
event.preventDefault();
} else {
event.returnValue = false;
};
}
}

EventUnit.addHandler(window, 'load', function() {
var wrap = $('wrap');
var menu = $('menu');
var menuStyle = menu.style.display;
var x = wrap.offsetLeft + wrap.clientWidth, y = wrap.offsetTop + wrap.clientHeight;
var w = 0, h = 0;
var left = 0, top = 0;

EventUnit.addHandler(wrap, 'contextmenu', function(event) {
event = EventUnit.getEvent(event);
EventUnit.preventDefault(event);

menu.style.display = 'block';
w = menu.clientWidth;
h = menu.clientHeight;
left = (x - event.clientX >= w) ? event.clientX - wrap.offsetLeft : event.clientX - wrap.offsetLeft - w;
top = (event.clientY + h <= y) ? event.clientY - wrap.offsetTop : event.clientY - wrap.offsetTop - h;
menu.style.left = left + 'px';
menu.style.top = top + 'px';
});

EventUnit.addHandler(document, 'click', function() {
menu.style.display = menuStyle;
});
});
//]]>
</script>
</head>

<body>
<div id="wrap">
<p>单击右键看效果~</p>
<ul id="menu">
<li><a href="#">撤销</a></li>
<li><a href="#">重做</a></li>
<li><a href="#">复制</a></li>
<li><a href="#">粘贴</a></li>
</ul>
</div>
</body>
</html> JavaScript 右按键菜单连接 HTML 函数 --------------------编程问答-------------------- <!DOCTYPE html>
<html>
<head>
<title>右键菜单</title>
<style>

</style>
<script type="text/javascript">
//<![CDATA[
function $(id) {
return document.getElementById(id);
};

var EventUnit = {
addHandler: function(element, type, handler) {//添加事件处理程序
if(element.addEventListener) {
element.addEventListener(type, handler, false);
} else if(element.attachEvent) {
element.attachEvent('on' + type, handler);
} else {
element['on' + type] = handler;
};
},
getEvent: function(event) {
return event ? event : window.event;
},
preventDefault: function(event) {//取消事件默认动作
if(event.preventDefault) {
event.preventDefault();
} else {
event.returnValue = false;
};
}
}

EventUnit.addHandler(window, 'load', function() {
var wrap = $('wrap');
var menu = $('menu');
var menuStyle = menu.style.display;
var x = wrap.offsetLeft + wrap.clientWidth, y = wrap.offsetTop + wrap.clientHeight;
var w = 0, h = 0;
var left = 0, top = 0;

EventUnit.addHandler(wrap, 'contextmenu', function(event) {
event = EventUnit.getEvent(event);
EventUnit.preventDefault(event);
});

EventUnit.addHandler($('obj'), 'contextmenu', function(event) {
event = EventUnit.getEvent(event);
EventUnit.preventDefault(event);

menu.style.display = 'block';
w = menu.clientWidth;
h = menu.clientHeight;
left = (x - event.clientX >= w) ? event.clientX - wrap.offsetLeft : event.clientX - wrap.offsetLeft - w;
top = (event.clientY + h <= y) ? event.clientY - wrap.offsetTop : event.clientY - wrap.offsetTop - h;
menu.style.left = left + 'px';
menu.style.top = top + 'px';
});

EventUnit.addHandler(document, 'click', function() {
menu.style.display = menuStyle;
});
});
//]]>
</script>
</head>

<body>
<div id="wrap">
<p id="obj">单击右键看效果~</p>
<ul id="menu">
<li><a href="#">撤销</a></li>
<li><a href="#">重做</a></li>
<li><a href="#">复制</a></li>
<li><a href="#">粘贴</a></li>
</ul>
</div>
</body>
</html> --------------------编程问答-------------------- 如果 <p id="obj">单击右键看效果~</p> 有个编号的值，我要点撤销怎么把值传到Action里面啊

补充：Java ,  Java相关