var contem1 = "kaye";
var contem2 = "@";
var contem3 = "coaching4success.com.au";

/* window.onbeforeunload = confirmExit;
var needconfirm = true;

function confirmExit() {    
    if (needconfirm) return "Please sign up for our free monthly newsletter.";
}
*/

var MAXNUM = 10;
var eq = new Array("+","-","*","/");

var rel = 0; // Math.floor(Math.random() * 4);
var l = Math.floor(Math.random() * MAXNUM) + 1;
var r = Math.floor(Math.random() * MAXNUM) + 1;

var answ;

switch(rel) {
case 0 : answ = l + r; break;
case 1 : 
    if (l < r) {
        k = l;
        l = r;
        r = k; 
    }
    answ = l - r;
    break;
case 2 : answ = l * r; break;
case 3 : 
        answ = l * r;
        k = l;
        l = answ;
        answ = k;
    break;
}

answ = '<input name="equ" type="hidden" value="'+answ+'">';
var equation = l + " " + eq[rel] + " " + r + " = ";

function isemail(val){
   return (val.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) != -1);
}

function verifyform(){
    if (document.form.name.value == ""){
        alert("Please enter name!");
        return false;
    }
   
    if (document.form.email.value == "" ||
        !isemail(document.form.email.value)){
        alert("Please enter a valid email address!");
        return false;
    }
    if (document.form.equ.value != document.form.answ.value){
        alert("Please solve the equation!");
        return false;
    } 

    needconfirm = false;
    return true;
}