function checkform ( form )
{
  errordesc="";

	if (form.Email.value == "")
	{
	  errordesc = "Email, \n" + errordesc;
		form.Email.focus();
	}
	
	if (form.Address.value == "")
	{
	  errordesc = "Address, \n" + errordesc;
		form.Address.focus();
	}

	if (form.Company_Name.value == "")
	{
	  errordesc = "Company Name, \n" + errordesc;
		form.Company_Name.focus();
	}

  if (form.Name.value == "") 
	{
	  errordesc = "Name, \n" + errordesc;
		form.Name.focus();
	}
	
  if (errordesc != "")
	{
		alert("Please enter the following fields:\n" + errordesc.substr(0, errordesc.length - 3) + ".");
		return false;
	}
	
	return true;	
}