How to disable right click in mouse event in jquery?

<script src="http://code.jquery.com/jquery-1.9.1.js" type="text/javascript"></script>
<script type="text/javascript">
$(function () {
 $(document).bind('contextmenu', function (e) {
  e.preventDefault();
  alert('Right Click is not allowed');
 });
});
</script>

How to lowercase of input field in onkeyup event?

Script Method:
<input type="text" id="ele" onkeyup="this.value=this.value.toLowerCase()" >
CSS Method:
Add style "text-transform:uppercase"
<input type="text" id="ele" style='text-transform:lowercase' >

How to uppercase of input field in onkeyup event?

Script Method:
<input type="text" id="ele" onkeyup="this.value=this.value.toUpperCase()" >
CSS Method:
Add style "text-transform:uppercase"
<input type="text" id="ele" style='text-transform:uppercase' >