Java script program for Validating Email and Phone Number in crm

function phonenumber()
{
var a=Xrm.Page.getAttribute( "ccs_phoneno").getValue();
var reg = /^.*(?=.{10,})(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?=.*[@#$%^&+=]).*$/;
   var K = reg.exec(a);
       if (!K)
                 alert("phone number is  valid");
            else

             alert("phone number is not valid");

         var email = Xrm.Page.getAttribute( "ccs_email_id").getValue();
var reg = /^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
        var OK = reg.exec(email);
       if (!OK)

    alert("Email Address isn't  valid");

        else
         alert("Email Address  is  valid");

   }