show div onselect and onclick

[Kyuzo]

Can someone modify this script to load by selecting an object and then right-clicking on it?
on the head:

var SimpleContextMenu = {
 
	// private attributes
	_menus : new Array,
	_attachedElement : null,
	_menuElement : null,
	_preventDefault : true,
	_preventForms : true,
 
 
	// public method. Sets up whole context menu stuff..
	setup : function (conf) {
 
		if ( document.all && document.getElementById && !window.opera ) {
			SimpleContextMenu.IE = true;
		}
 
		if ( !document.all && document.getElementById && !window.opera ) {
			SimpleContextMenu.FF = true;
		}
 
		if ( document.all && document.getElementById && window.opera ) {
			SimpleContextMenu.OP = true;
		}
 
		if ( SimpleContextMenu.IE || SimpleContextMenu.FF ) {
 
			document.oncontextmenu = SimpleContextMenu._show;
			document.onclick = SimpleContextMenu._hide;
 
			if (conf && typeof(conf.preventDefault) != "undefined") {
				SimpleContextMenu._preventDefault = conf.preventDefault;
			}
 
			if (conf && typeof(conf.preventForms) != "undefined") {
				SimpleContextMenu._preventForms = conf.preventForms;
			}
 
		}
 
	},
 
 
	// public method. Attaches context menus to specific class names
	attach : function (classNames, menuId) {
 
		if (typeof(classNames) == "string") {
			SimpleContextMenu._menus[classNames] = menuId;
		}
 
		if (typeof(classNames) == "object") {
			for (x = 0; x < classNames.length; x++) {
				SimpleContextMenu._menus[classNames[x]] = menuId;
			}
		}
 
	},
 
 
	// private method. Get which context menu to show
	_getMenuElementId : function (e) {
 
		if (SimpleContextMenu.IE) {
			SimpleContextMenu._attachedElement = event.srcElement;
		} else {
			SimpleContextMenu._attachedElement = e.target;
		}
 
		while(SimpleContextMenu._attachedElement != null) {
			var className = SimpleContextMenu._attachedElement.className;
 
			if (typeof(className) != "undefined") {
				className = className.replace(/^\s+/g, "").replace(/\s+$/g, "")
				var classArray = className.split(/[ ]+/g);
 
				for (i = 0; i < classArray.length; i++) {
					if (SimpleContextMenu._menus[classArray[i]]) {
						return SimpleContextMenu._menus[classArray[i]];
					}
				}
			}
 
			if (SimpleContextMenu.IE) {
				SimpleContextMenu._attachedElement = SimpleContextMenu._attachedElement.parentElement;
			} else {
				SimpleContextMenu._attachedElement = SimpleContextMenu._attachedElement.parentNode;
			}
		}
 
		return null;
 
	},
 
 
	// private method. Shows context menu
	_getReturnValue : function (e) {
 
		var returnValue = true;
		var evt = SimpleContextMenu.IE ? window.event : e;
 
		if (evt.button != 1) {
			if (evt.target) {
				var el = evt.target;
			} else if (evt.srcElement) {
				var el = evt.srcElement;
			}
 
			var tname = el.tagName.toLowerCase();
 
			if ((tname == "input" || tname == "textarea")) {
				if (!SimpleContextMenu._preventForms) {
					returnValue = true;
				} else {
					returnValue = false;
				}
			} else {
				if (!SimpleContextMenu._preventDefault) {
					returnValue = true;
				} else {
					returnValue = false;
				}
			}
		}
 
		return returnValue;
 
	},
 
 
	// private method. Shows context menu
	_show : function (e) {
 
		SimpleContextMenu._hide();
		var menuElementId = SimpleContextMenu._getMenuElementId(e);
 
		if (menuElementId) {
			var m = SimpleContextMenu._getMousePosition(e);
			var s = SimpleContextMenu._getScrollPosition(e);
 
			SimpleContextMenu._menuElement = document.getElementById(menuElementId);
			SimpleContextMenu._menuElement.style.left = m.x + s.x + 'px';
			SimpleContextMenu._menuElement.style.top = m.y + s.y + 'px';
			SimpleContextMenu._menuElement.style.display = 'block';
			return false;
		}
 
		return SimpleContextMenu._getReturnValue(e);
 
	},
 
 
	// private method. Hides context menu
	_hide : function () {
 
		if (SimpleContextMenu._menuElement) {
			SimpleContextMenu._menuElement.style.display = 'none';
		}
 
	},
 
 
	// private method. Returns mouse position
	_getMousePosition : function (e) {
 
		e = e ? e : window.event;
		var position = {
			'x' : e.clientX,
			'y' : e.clientY
		}
 
		return position;
 
	},
 
 
	// private method. Get document scroll position
	_getScrollPosition : function () {
 
		var x = 0;
		var y = 0;
 
		if( typeof( window.pageYOffset ) == 'number' ) {
			x = window.pageXOffset;
			y = window.pageYOffset;
		} else if( document.documentElement && ( document.documentElement.scrollLeft || document.documentElement.scrollTop ) ) {
			x = document.documentElement.scrollLeft;
			y = document.documentElement.scrollTop;
		} else if( document.body && ( document.body.scrollLeft || document.body.scrollTop ) ) {
			x = document.body.scrollLeft;
			y = document.body.scrollTop;
		}
 
		var position = {
			'x' : x,
			'y' : y
		}

		return position;

	}
 
}

SimpleContextMenu.setup({'preventDefault':true, 'preventForms':false});
SimpleContextMenu.attach('', 'contextmenu');

on the body:

<div id=contextmenu class=SimpleContextMenu>
<li><a onClick="window.history.go(-1);"><img src=img/back.png align=top> &nbsp;Back</a></li>
<li><a onClick="window.history.go(1);"><img src=img/forward.png align=top> &nbsp;Forward</a></li>
<li><a onClick="document.location.reload()"><img src=img/reload.png align=top> &nbsp;Reload</a></li>
</div>

This is the second javascript to show (there is a first) then they must not be similar!

[Kyuzo]

Please help me!