function checkContactForm() {

	if(document.contact_form.person_name.value == ''){
		alert("Type your name, please!");
		document.contact_form.person_name.focus();
		return false;
	}

	if(document.contact_form.company_name.value == ''){
		alert("Type your company name, please!");
		document.contact_form.company_name.focus();
		return false;
	}

	if(document.contact_form.job_title.value == ''){
		alert("Type your job title, please!");
		document.contact_form.job_title.focus();
		return false;
	}

	if(document.contact_form.address.value == ''){
		alert("Type your address, please!");
		document.contact_form.address.focus();
		return false;
	}

	if(document.contact_form.post_code.value == ''){
		alert("Type your post code, please!");
		document.contact_form.post_code.focus();
		return false;
	}

	if(document.contact_form.telephone.value == ''){
		alert("Type your telephone number, please!");
		document.contact_form.telephone.focus();
		return false;
	}

	if(!/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,4})+$/.test(document.contact_form.email.value)){
		alert("Type your email address, please!");
		document.contact_form.email.focus();
		return false;
	}

	if(document.contact_form.project_scope.value == ''){
		alert("Define your project scope, please!");
		document.contact_form.project_scope.focus();
		return false;
	}

	if(document.contact_form.budget_id.value == ''){
		alert("Define your project budget, please!");
		document.contact_form.budget_id.focus();
		return false;
	}

	if(document.contact_form.service_id.value == ''){
		alert("Define your required service, please!");
		document.contact_form.service_id.focus();
		return false;
	}

	if(document.contact_form.start_id.value == ''){
		alert("Define when would you like to commence work, please!");
		document.contact_form.start_id.focus();
		return false;
	}

	if(document.contact_form.employee_id.value == ''){
		alert("Select the number of employees at your company, please!");
		document.contact_form.employee_id.focus();
		return false;
	}

	if(document.contact_form.about.value == ''){
		alert("Let us know where did you hear about us, please!");
		document.contact_form.about.focus();
		return false;
	}

	if(document.contact_form.private_key.value == ''){
		alert("Type the numbers and letters from the secure image, please!");
		document.contact_form.private_key.focus();
		return false;
	}

}