function checkForm() {


	if (document.getElementById("form_name").value == "") {
		 alert("Please enter your  name");
		 document.getElementById("form_name").focus();
		 return false;
	}
	
		if (document.getElementById("form_company").value == "") {
		 alert("Please enter your company name");
		 document.getElementById("form_company").focus();
		 return false;
	}	
		if (document.getElementById("form_post").value == "") {
		 alert("Please enter your Post Code / State + Zip Code");
		 document.getElementById("form_post").focus();
		 return false;
	}
	
		if (document.getElementById("form_telephone").value == "") {
		 alert("Please enter your telephone number");
		 document.getElementById("form_telephone").focus();
		 return false;
	}

	if (document.getElementById("form_email").value == "") {
		 alert("Please enter your email address");
		 document.getElementById("form_email").focus();
		 return false;
	}
	if (!(/^[a-zA-Z0-9\.\_\-]+@[a-zA-Z0-9\_\-]+(\.[a-zA-Z0-9\_\-]+)+$/.test(document.getElementById("form_email").value))) {
		 alert("Please enter valid email address");
		 document.getElementById("form_email").focus();
		 return false;
	}

	else {
		return true;
	}
}