function submitIt() {

  if (document.installationFeedbackForm.ProdName.value=="")
       {
        alert ("Please enter the Product Name.");
		window.document.installationFeedbackForm.ProdName.focus();
         return false;
        }

  if (document.installationFeedbackForm.SerialNumber.value=="")
       {
        alert ("Please enter the Serial Number.");
        document.installationFeedbackForm.SerialNumber.focus();
         return false;
        }

  if (document.installationFeedbackForm.CompName1.value!="" && document.installationFeedbackForm.CompSerial1.value=="")
       {
        alert ("Please enter the serial number.");
        document.installationFeedbackForm.CompSerial1.focus();
         return false;
        }

  if (document.installationFeedbackForm.CompName2.value!="" && document.installationFeedbackForm.CompSerial2.value=="")
       {
        alert ("Please enter the serial number.");
        document.installationFeedbackForm.CompSerial2.focus();
         return false;
        }

  if (document.installationFeedbackForm.CompName3.value!="" && document.installationFeedbackForm.CompSerial3.value=="")
       {
        alert ("Please enter the serial number.");
        document.installationFeedbackForm.CompSerial3.focus();
         return false;
        }

  if (document.installationFeedbackForm.CustName.value=="")
       {
        alert ("Please enter the Company name.");
        document.installationFeedbackForm.CustName.focus();
         return false;
        }

  if (document.installationFeedbackForm.Country.value=="")
       {
        alert ("Please enter the Country.");
        document.installationFeedbackForm.Country.focus();
         return false;
        }

  if (document.installationFeedbackForm.Region.value=="")
       {
        alert ("Please enter the Region.");
        document.installationFeedbackForm.Region.focus();
         return false;
        }

  if (document.installationFeedbackForm.InstallersName.value=="")
       {
        alert ("Please enter the Installers name.");
        document.installationFeedbackForm.InstallersName.focus();
         return false;
        }

  if (document.installationFeedbackForm.InstallerPhone.value=="")
       {
        alert ("Please enter the Installers phone number.");
       document.installationFeedbackForm.InstallerPhone.focus();
         return false;
        }

  if (document.installationFeedbackForm.InstallMonth.value<"1")
       {
        alert ("Please enter the Date the product was installed.");
        document.installationFeedbackForm.InstallMonth.focus();
         return false;
        }
        
  if (document.installationFeedbackForm.InstallDay.value<"1")
       {
        alert ("Please enter the Date the product was installed.");
        document.installationFeedbackForm.InstallDay.focus();
         return false;
        }
        
  if (document.installationFeedbackForm.InstallYear.value<"1")
       {
        alert ("Please enter the Date the product was installed.");
        document.installationFeedbackForm.InstallYear.focus();
         return false;
        }          
              
  if (document.installationFeedbackForm.CustomerExpect[0].checked=="" && document.installationFeedbackForm.CustomerExpect[1].checked=="")
       {
        alert ("Please check Yes or No as to whether the product installation met your expectations.");
        document.installationFeedbackForm.CustomerExpect[0].focus();
         return false;
        }

  if (document.installationFeedbackForm.CustomerExpect[1].checked==true && document.installationFeedbackForm.CustomerExpectDesc.value=="")
       {
        alert ("Please explain why the installation did not meet your expectations.");
        document.installationFeedbackForm.CustomerExpectDesc.focus();
         return false;
        }

  if (document.installationFeedbackForm.NoDamage[0].checked=="" && document.installationFeedbackForm.CustomerExpect[0].checked==false && document.installationFeedbackForm.NoDamage[1].checked=="")
       {
        alert ("Please check Yes or No as to whether the product arrived without damage.");
        document.installationFeedbackForm.NoDamage[0].focus();
         return false;
        }

  if (document.installationFeedbackForm.NoPartsMissing[0].checked=="" && document.installationFeedbackForm.CustomerExpect[0].checked==false && document.installationFeedbackForm.NoPartsMissing[1].checked=="")
       {
        alert ("Please check Yes or No as to whether the parts received matched the shipping document.");
        document.installationFeedbackForm.NoPartsMissing[0].focus();
         return false;
        }

  if (document.installationFeedbackForm.NoPartsMissing[1].checked==true && document.installationFeedbackForm.PMParts1Desc.value=="" && document.installationFeedbackForm.PMParts1.value=="")
       {
        alert ("Please enter the missing Part information.");
        document.installationFeedbackForm.PMParts1.focus();
         return false;
        }

  if (document.installationFeedbackForm.NoPartsMissing[1].checked==true && document.installationFeedbackForm.PMParts1.value=="" && document.installationFeedbackForm.PMParts1Desc.value=="")
       {
        alert ("Please enter the missing Part information.");
        document.installationFeedbackForm.PMParts1.focus();
         return false;
        }

  if (document.installationFeedbackForm.PartsWorking[0].checked=="" && document.installationFeedbackForm.CustomerExpect[0].checked==false && document.installationFeedbackForm.PartsWorking[1].checked=="")
       {
        alert ("Please check Yes or No as to whether the product arrived in working condition.");
        document.installationFeedbackForm.PartsWorking[0].focus();
         return false;
        }

  if (document.installationFeedbackForm.PartsWorking[1].checked==true && document.installationFeedbackForm.PWParts1Desc.value=="" && document.installationFeedbackForm.PWParts1.value=="")
       {
        alert ("Please enter the defective Part information.");
        document.installationFeedbackForm.PWParts1.focus();
         return false;
        }

  if (document.installationFeedbackForm.PartsWorking[1].checked==true && document.installationFeedbackForm.PWParts1.value=="" && document.installationFeedbackForm.PWParts1Desc.value=="")
       {
        alert ("Please enter the defective Part information.");
        document.installationFeedbackForm.PWParts1.focus();
         return false;
        }

  if (document.installationFeedbackForm.HWPowerUp[0].checked=="" && document.installationFeedbackForm.HWPowerUp[1].checked=="" && document.installationFeedbackForm.SWLoadUp[0].checked=="" && document.installationFeedbackForm.SWLoadUp[1].checked=="" && document.installationFeedbackForm.CustomerExpect[0].checked==false)
       {
        alert ("Please check Yes or No as to whether the hardware and/or software ran without problems.");
        document.installationFeedbackForm.HWPowerUp[0].focus();
         return false;
        }

  if (document.installationFeedbackForm.SWLoadUp[0].checked=="" && document.installationFeedbackForm.SWLoadUp[1].checked=="" && document.installationFeedbackForm.HWPowerUp[0].checked=="" && document.installationFeedbackForm.HWPowerUp[1].checked=="" && document.installationFeedbackForm.CustomerExpect[0].checked==false)
       {
        alert ("Please check Yes or No as to whether the software was loaded and run without problems.");
        document.installationFeedbackForm.HWPowerUp[0].focus();
         return false;
        }

  if (document.installationFeedbackForm.NoAdjustments[0].checked=="" && document.installationFeedbackForm.CustomerExpect[0].checked==false && document.installationFeedbackForm.NoAdjustments[1].checked=="")
       {
        alert ("Please check Yes or No as to whether the installation was completed without adjustments.");
        document.installationFeedbackForm.NoAdjustments[0].focus();
         return false;
        }

  if (document.installationFeedbackForm.NoAdjustments[1].checked==true && document.installationFeedbackForm.NoAdjustmentsDesc.value=="")
       {
        alert ("Please describe the required adjustments.");
        document.installationFeedbackForm.NoAdjustmentsDesc.focus();
         return false;
        }

  if (document.installationFeedbackForm.InstructionsDoc[0].checked=="" && document.installationFeedbackForm.CustomerExpect[0].checked==false && document.installationFeedbackForm.InstructionsDoc[1].checked=="")
       {
        alert ("Please check Yes or No as to whether product documentation was adequate and easy to follow.");
        document.installationFeedbackForm.InstructionsDoc[0].focus();
         return false;
        }


  if (document.installationFeedbackForm.InstructionsDoc[1].checked==true && document.installationFeedbackForm.InstructionsDocDesc.value=="")
       {
        alert ("Please explain how the documentation can be improved.");
        document.installationFeedbackForm.InstructionsDocDesc.focus();
         return false;
        }


		if	(emailCheck(window.document.installationFeedbackForm.Email.value)== false)
 
			return false;
 
			return true;
}

function emailCheck (emailStr) {
/* The following pattern is used to check if the entered e-mail address
	fits the user@domain format.  It also is used to separate the username
	from the domain. */
	var emailPat=/^(.+)@(.+)$/
	/* The following string represents the pattern for matching all special
		characters.  We don't want to allow special characters in the address. 
		These characters include ( ) < > @ , ; : \ " . [ ]    */
	var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
	/* The following string represents the range of characters allowed in a 
		username or domainname.  It really states which chars aren't allowed. */
	var validChars="\[^\\s" + specialChars + "\]"
	/* The following pattern applies if the "user" is a quoted string (in
		which case, there are no rules about which characters are allowed
		and which aren't; anything goes).  E.g. "jiminy cricket"@disney.com
		is a legal e-mail address. */
	var quotedUser="(\"[^\"]*\")"
	/* The following pattern applies for domains that are IP addresses,
		rather than symbolic names.  E.g. joe@[123.124.233.4] is a legal
		e-mail address. NOTE: The square brackets are required. */
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
	/* The following string represents an atom (basically a series of
		non-special characters.) */
	var atom=validChars + '+'
	/* The following string represents one word in the typical username.
		For example, in john.doe@somewhere.com, john and doe are words.
		Basically, a word is either an atom or quoted string. */
	var word="(" + atom + "|" + quotedUser + ")"
	// The following pattern describes the structure of the user
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
	/* The following pattern describes the structure of a normal symbolic
		domain, as opposed to ipDomainPat, shown above. */
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")
if ((installationFeedbackForm.Email.value) == ""){
alert ("Please enter your e-mail address.")
return false;
}

	/* Finally, let's start trying to figure out if the supplied address is
		valid. */

	/* Begin with the coarse pattern to simply break up user@domain into
		different pieces that are easy to analyze. */
	var matchArray=emailStr.match(emailPat)
if (matchArray==null) {
	/* Too many/few @'s or something; basically, this address doesn't
	  even fit the general mould of a valid e-mail address. */
	alert("Email address seems incorrect (check @ and .'s)")
return false
}
	var user=matchArray[1]
	var domain=matchArray[2]

// See if "user" is valid 
if (user.match(userPat)==null) {
	 // user is not valid
	 alert("The username doesn't seem to be valid.")
	 return false
}
	/* if the e-mail address is at an IP address (as opposed to a symbolic
		host name) make sure the IP address is valid. */
	var IPArray=domain.match(ipDomainPat)
if (IPArray!=null) {
	 // this is an IP address
for (var i=1;i<=4;i++) {
if (IPArray[i]>255) {
	alert("Destination IP address is invalid!")
return false
}
 }
 return true
}

// Domain is symbolic name
	var domainArray=domain.match(domainPat)
if (domainArray==null) {
alert("The domain name doesn't seem to be valid.")
 return false
}

/* domain name seems valid, but now make sure that it ends in a
	three-letter word (like com, edu, gov) or a two-letter word,
	representing country (uk, nl), and that there's a hostname preceding 
	the domain or country. */

/* Now we need to break up the domain to get a count of how many atoms
	it consists of. */
	var atomPat=new RegExp(atom,"g")
	var domArr=domain.match(atomPat)
	var len=domArr.length
if (domArr[domArr.length-1].length<2 || 
	 domArr[domArr.length-1].length>3) {
	// the address must end in a two letter or three letter word.
	alert("The address must end in a three-letter domain, or two letter country.")
return false
}

// Make sure there's a host name preceding the domain.
if (len<2) {
	var errStr="This address is missing a hostname!"
	alert(errStr)
	return false
}

// If we've gotten this far, everything's valid!

return true;

}