Error in jquery.ui.core.js, line 209?

Error in jquery.ui.core.js, line 209?

I use jqGrid-4.3.3 in my asp.net mvc 3 app with jquery-ui-1.8.21.custom package.  When I run my website in IE8, I got this error in an IE pop:

'3' is null or not an object in jquery.ui.core.js, line 209 character 3, which I show here:

function visible( element ) {
return !$( element ).parents().andSelf().filter(function() {
return $.curCSS( this, "visibility" ) === "hidden" ||
$.expr.filters.hidden( this );
}).length;
}

$.extend( $.expr[ ":" ], {
data: function( elem, i, match ) {
return !!$.data( elem, match[ 3 ] ); // This is line 209.
},

focusable: function( element ) {
return focusable( element, !isNaN( $.attr( element, "tabindex" ) ) );
},

tabbable: function( element ) {
var tabIndex = $.attr( element, "tabindex" ),
isTabIndexNaN = isNaN( tabIndex );
return ( isTabIndexNaN || tabIndex >= 0 ) && focusable( element, !isTabIndexNaN );
}
});