I am performing date validation and now I am doing that user can only enter numbers ,/and backspace so now I want to add 2 more keys into my regular expression. I want to add delete and arrow keys so what will change I should do in my Regular Expression .This is my code

<input type=text id=date name=date onkeypress=check(event,this);  />

this is me Javascript code

<script type=text/javascript>



function check(evt, id)

{



 var value = id.value;



 var theEvent = evt || window.event;

 var key = theEvent.keyCode || theEvent.which;

 key = String.fromCharCode( key );



 var regex = /[0-9|b|/]/;



 if( !regex.test(key)) 

 {

  theEvent.returnValue = false;



  if(theEvent.preventDefault) 

   theEvent.preventDefault();

 }   

}







</script>

Thanks waiting for your help.