multi-right-click got multi-context-menu (last one does not disappear) on IE9

[hhmmdd]

on IE9 the bg cover sometime not work, so I just add a few code, to avoid this,

// On contextmenu event (right click)
this.bind('contextmenu', function(e) {
//remove any old, maodonghu 2013/4/11
$('.bgCover').remove();
$('.'+settings.contextMenuClass).remove();

var menu = createMenu(e)
  .show();

...

var bg = $('<div class="bgCover"></div>')

[stewil87]

The main issue isnt only on IE9
The cover sometimes doesn't work, because its height is set to 100%.
but if the page is higher you are able to load x new windows
(tested in Chrome Version 39.0.2171.71 m).

For Quick fix: set its height to clientHeight in jquery.contextmenu.js:

From:
// Cover rest of page with invisible div that when clicked will cancel the popup.
var bg = $('

')
.css({left:0, top:0, width:'100%', height:'100%', position:'absolute', zIndex:1000000})
.appendTo(document.body)
To:
// Cover rest of page with invisible div that when clicked will cancel the popup.
var bg = $('

')
.css({left:0, top:0, width:'100%', height:document.body.clientHeight+'px', position:'absolute', zIndex:1000000})
.appendTo(document.body)

[EDIT:]
Or ...ehm... of course set position from absolute to fixed

// Cover rest of page with invisible div that when clicked will cancel the popup.
var bg = $('

')
.css({left:0, top:0, width:'100%', height:'100%', position:'fixed', zIndex:1000000})
.appendTo(document.body)