function validateForm() 
							{
							 var okSoFar=true
							 with (document.activate)
							 {
							 if (c_title.value=="" && okSoFar)
							  {
								okSoFar=false
								alert("Please enter your title.")
								c_title.focus()
							  }
							  if (c_age.value=="" && okSoFar)
							  {
								okSoFar=false
								alert("Please enter your date of birth.")
								c_age.focus()
							  }
							  if (c_street.value=="" && okSoFar)
							  {
								okSoFar=false
								alert("Please enter your street name.")
								c_street.focus()
							  }
							  if (c_town.value=="" && okSoFar)
							  {
								okSoFar=false
								alert("Please enter your town.")
								c_town.focus()
							  }
							  if (c_county.value=="" && okSoFar)
							  {
								okSoFar=false
								alert("Please enter your county.")
								c_county.focus()
							  }
							  if (c_postcode.value=="" && okSoFar)
							  {
								okSoFar=false
								alert("Please enter your postcode.")
								c_postcode.focus()
							  }
							  if (marketing.value=="" && okSoFar)
							  {
								okSoFar=false
								alert("Where did you purchase the book?")
								marketing.focus()
							  }
							  if (hear.value=="" && okSoFar)
							  {
								okSoFar=false
								alert("How did you hear about us?.")
								hear.focus()
							  }
							  if (okSoFar==true)  submit();
							 }
							}