lib/stack.utility.js
function () { 
      var val = (1 + (Math.random() * (30000)) | 3); 
      if(!(val >= 10000)){
        val += (10000 * Math.floor(Math.random * 9));
      } 
      return val;
    }
function () { 
      var val = (1 + (Math.random() * (30000)) | 3); 
      if(!(val >= 10000)){
        val += (10000 * Math.floor(Math.random * 9));
      } 
      return val;
    }
function ( ) { var val = ( 1 + ( Math . random ( ) * ( 30000 ) ) | 3 ) ; if ( ! ( val >= 10000 ) ) { val += ( 10000 * Math . floor ( Math . random * 9 ) ) ; } return val ; }
simple function to generate random numbers of 4 lengths
simple function to generate random numbers of 4 lengths