function checkform(form){
  var websitereg = /^(http(s?):\/\/)?(www\.)?([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
  var emailreg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
  var phonereg = /^([0-9_\-\(\)\.]{7,12})$/;
  var name = form.contact_name.value;
  var phone = form.contact_phone.value;
  var email = form.contact_email.value;
  var website = form.contact_website.value;
  var company = form.contact_company.value;
  var service = form.contact_service.value;
  var message = form.contact_message.value;
  
  if(name == '' || phone == '' || email == '' || website == '' || company == '' || service == '' || message == ''){
    alert('Kindly fill-up all the fields.');
    return false;
  }else if(website != 'N/A' && websitereg.test(website) == false) {
    alert('Please check the url of your website.');
    return false;
  }else if(phonereg.test(phone) == false) {
    alert('Please check your phone number.');
    return false;
  }else if(email != 'N/A' && emailreg.test(email) == false) {
    alert('Please check your email.');
    return false;
  }else{
    alert('Your details have been sent. Thank you!');
    return true;
  }
}

function checkproposalform(form){
  var websitereg = /^(http(s?):\/\/)?(www\.)?([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
  var emailreg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
  var phonereg = /^([0-9_\-\(\)\.]{7,12})$/;
  var name = form.contact_name.value;
  var phone = form.contact_phone.value;
  var website = form.contact_website.value;
  
  if(name == '' || phone == '' || website == ''){
    alert('Kindly fill-up all the fields.');
    return false;
  }else if(phonereg.test(phone) == false) {
    alert('Please check your phone number.');
    return false;
  }else if(website != '' && websitereg.test(website) == false) {
    alert('Please check the url of your website.');
    return false;
  }else if(email != '' && emailreg.test(email) == false) {
    alert('Please check your email.');
    return false;
  }else{
    alert('Your message has been sent. Thank you!');
    return true;
  }
}

function checkseotoolform(form){
  var websitereg = /^(http(s?):\/\/)?(www\.)?([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
  var emailreg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
  var name = form.contact_name.value;
  var website = form.contact_website.value;
  var email = form.contact_email.value;
  var free = form.seotool_free.value;
  var functionality = form.seotool_functionality.value;
  
  if(name == '' || email == '' ||  website == '' || free == '' || functionality == ''){
    alert('Kindly fill-up all the fields.');
    return false;
  } else if(website != '' && websitereg.test(website) == false) {
    alert('Please check the url of your website.');
    return false;
  }else if(email != '' && emailreg.test(email) == false) {
    alert('Please check your email.');
    return false;
  }else{
    alert('Your message has been sent. Thank you!');
    return true;
  }
}