navigation using keyboard using jquery
<p>1.When i use keyboard up arrow it should highlight a move to up row and if i press down arrow the high light should move to down row</p>

<p>2.If i use uparrow or down arrow along with ctrl ,i should be able to multi select.</p>

<p>Here i have wrote code if i keep pressing up arrow it is continuing selecting and down arrow it is deselecting but i want do as what i mentioned above
[http://jsfiddle.net/hKZqS/2/]</p>
