Generate phone cell number
By Marcin Olejarz
Script uses math functions like Math.floor and Math.random, which help to generate random phone cell number.
function rand_number () {
var math_result = Math.floor(Math.random() * 1000000000);
if (math_result.toString().length < 9) {
math_result = math_result + "0";
}
document.getElementById("result").value = math_result;
}