function checkform(which) {

	switch (which.formtype.value) {
	
	case "twochecks":
		if (!checktwochecks(which)) return false;
		return true;
		break;
	case "multichecks":
		if (!checkmultichecks(which)) return false;
		return true;
		break;
	case "oneweb":
		if (!checkoneweb(which)) return false;
		return true;
		break;
	case "oneradio":
		if (!checkoneradio(which)) return false;
		return true;
		break;
	case "one":
		if (!checkone(which)) return false;
		return true;
		break;
    default:
		if (!checkrequired(which)) return false;
		if (!emailCheck(which.requiredEmail.value)) return false;
    return true;
	}

}




function checktwochecks(which) {
  if (which.checkbox1.checked == false && which.checkbox2.checked == false) {
    alert("Please check at least one option.");
    return false;
  } else {
    if (!checkrequired(which)) return false;
    if (!emailCheck(which.requiredEmail.value)) return false;
    return true;
  }
}


function checkoneweb(which) {
    if (!checkrequired(which)) return false;
    if (!emailCheck(which.requiredEmail.value)) return false;
    return true;
}

function limitText(limitField, limitCount, limitNum) {
	if (limitField.value.length > limitNum) {
		limitField.value = limitField.value.substring(0, limitNum);
	} else {
//		limitCount.value = limitNum - limitField.value.length;
	}
}

function checkitquote(which) {
	
	/*if (which.q1.value == 'First') {
		alert("Please enter your first name.");
		which.q1.focus();
    return false;
	} else if (which.q2.value == 'Last') {
		alert("Please enter your last name.");
		which.q2.focus();
    return false;
	} */

	if (which.q1.value == 'First') {
		alert("Please enter your first name.");
		which.q1.focus();
		return false;
	} else if (which.q2.value == 'Last') {
		alert("Please enter your last name.");
		which.q2.focus();
		return false;
	} else if (which.q15.value == 'Company') {
		alert("Please enter your company.");
		which.q15.focus();
		return false;
	} else if (which.q14.value == 'Email address') {
		alert("Please enter your email address.");
		which.q14.focus();
		return false;
	} else if (which.q16.value == 'Phone') {
		alert("Please enter your phone number.");
		which.q16.focus();
		return false;
	} else if (checkpcs(which) == false ) {
		return false;
	} else if (checkservers(which) == false ) {
		return false;
	} else {return true;}
    
}

function checkhomeform(which) {
	

	if (which.q1.value == 'First Name') {
		alert("Please enter your first name.");
		which.q1.focus();
		return false;
	} else if (which.q2.value == 'Last Name') {
		alert("Please enter your last name.");
		which.q2.focus();
		return false;
	} else if (which.q15.value == 'Company') {
		alert("Please enter your company.");
		which.q15.focus();
		return false;
	} else if (which.q14.value == 'Email') {
		alert("Please enter your email address.");
		which.q14.focus();
		return false;
	} else if (which.q16.value == 'Phone') {
		alert("Please enter your phone number.");
		which.q16.focus();
		return false;
	} else if (checkpcs(which) == false ) {
		return false;
	} else {return true;}
    
}

function checkpcs(which) {
	var strVal = which.q43549.value;
	var fValue = parseFloat( strVal );	

 /* for (i=0; i<strVal.length; i++) {
    if (strVal.charCodeAt(i)<48) or (strVal.charCodeAt(i)>57)   {
      alert("Only numbers are allowed for the number of PCs.");
		which.q43549.focus();
      return false;
    }
  }
*/

  for (i=0; i<strVal.length; i++) {
	if (strVal.length < 1) {
      alert("Please enter number of PCs.");
		which.q43549.focus();
		which.q43549.select();
		return false;
	}

    if (strVal.charCodeAt(i)!=32) {


		if (strVal.charCodeAt(i)<48)   {
		  alert("Only numbers are allowed for the number of PCs.");
			which.q43549.focus();
			which.q43549.select();
		  return false;
		}
	   if (strVal.charCodeAt(i)>57)   {
		  alert("Only numbers are allowed for the number of PCs.");
			which.q43549.focus();
			which.q43549.select();
		  return false;
		}

	}

  }

return true;


//	if ( (which.q43549.value != "" && isNaN( fValue )) 	 )  {
//	if (which.q43549.value != "" && isNaN( fValue )) {
//		alert("Only numbers are allowed for the number of PCs.");
//		which.q43549.focus();
//		return false;
//	} else {return(true);}


	
}

function checkservers (which) {
	var strVal = which.q43550.value;
	var fValue = parseFloat( strVal );	
	
  for (i=0; i<strVal.length; i++) {
    if (strVal.charCodeAt(i)<48)   {
      alert("Only numbers are allowed for the number of Servers.");
		which.q43549.focus();
      return false;
    }
   if (strVal.charCodeAt(i)>57)   {
      alert("Only numbers are allowed for the number of Servers.");
		which.q43549.focus();
      return false;
    }
  }


//	if ( (which.q43550.value != "" && isNaN( fValue ))  ) {

//	if (which.q43550.value != "" && isNaN( fValue )) {
//		alert("Only numbers are allowed for the number of Servers.");
//	which.q43550.focus();
//  return false;
//	} 

	return true;
}

function checkoneradio(which) {
/* CHECKING RADIO BUTTONS */
	var radioOption = -1;
	for (i=0; i<which.radio.length;i++) {
		if (which.radio[i].checked) {
			radioOption = i
		}
	}
	if (radioOption == -1) {
		alert("Please select at least one option.");
		return false;
	
	} else {
		if (!checkrequired(which)) return false;
		if (!emailCheck(which.requiredEmail.value)) return false;
	return true;
	}
}

function checkone(which) {
    if (!checkrequired(which)) return false;
    if (!emailCheck(which.requiredEmail.value)) return false;
    return true;
}

function checkmultichecks(which) {
  if (which.topic1.checked == false && which.topic2.checked == false && which.topic3.checked == false && which.topic4.checked == false && which.topic5.checked == false && which.topic6.checked == false && which.topic7.checked == false ) {
    alert("Please check at least one presentation.");
    return false;
  } else {
    if (!checkrequired(which)) return false;
    if (!emailCheck(which.requiredEmail.value)) return false;
    return true;
  }
}



function checkrequired(which) {
  var pass=true;
  if (document.images) {
    for (i=0;i<which.length;i++) {
      var tempobj=which.elements[i];
      if (tempobj.name.substring(0,8)=="required") {
        if (((tempobj.type=="text" || tempobj.type=="textarea") && tempobj.value=='') || (tempobj.type.toString().charAt(0)=="s" && tempobj.selectedIndex==0)) {
          pass=false;
          break;
        }
      }
    }
  }

  if (!pass) {
/*    shortFieldName=tempobj.name.substring(8,30).toUpperCase(); */
    shortFieldName=tempobj.name.substring(8,30);
    alert("Please make sure the "+shortFieldName+" field is properly completed.");
    tempobj.focus();
    return false;
  } else {
  
	if (!emailCheck(which.requiredEmail.value)) return false;
	  return true;
  }
}

function checknewsletter(which) {
  if (which.sbca.checked == false && which.virus.checked == false) {
    alert("Please check at least one newsletter.");
    return false;
  } else {
    if (!checkrequired(which)) return false;
    if (!emailCheck(which.requiredEmail.value)) return false;
    return true;
  }
}



function checksmbs(which) {
  if (which.security.checked == false && which.spam.checked == false && which.outsourcing.checked == false ) {
    alert("Please check at least one IT Guide for SMBs to receive.");
    return false;
  } else {
    if (!checkrequired(which)) return false;
    if (!emailCheck(which.requiredEmail.value)) return false;
    return true;
  }
}


function checkala(which) {
  if (!checkrequired(which)) return false;
  if (!emailCheck(which.requiredEmail.value)) return false;
  return true;
}
function checklead(which) {
  if (!checkrequired(which)) return false;
  if (!emailCheck(which.email.value)) return false;
  if (!emailCheck(which.requiredYour_Email.value)) return false;
  return true;
}

function emailCheck (emailStr) {

/*This script and many more are available free online at
  The JavaScript Source!! http://javascript.internet.com

  V1.1.3: Sandeep V. Tamhankar (stamhankar@hotmail.com)
  Original:  Sandeep V. Tamhankar (stamhankar@hotmail.com)
  Changes:

  1.1.4: Fixed a bug where upper ASCII characters (i.e. accented letters
  international characters) were allowed.

  1.1.3: Added the restriction to only accept addresses ending in two
  letters (interpreted to be a country code) or one of the known
  TLDs (com, net, org, edu, int, mil, gov, arpa), including the
  new ones (biz, aero, name, coop, info, pro, museum).  One can
  easily update the list (if ICANN adds even more TLDs in the
  future) by updating the knownDomsPat variable near the
  top of the function.  Also, I added a variable at the top
  of the function that determines whether or not TLDs should be
  checked at all.  This is good if you are using this function
  internally (i.e. intranet site) where hostnames don't have to 
  conform to W3C standards and thus internal organization e-mail
  addresses don't have to either.
  Changed some of the logic so that the function will work properly
  with Netscape 6.

  1.1.2: Fixed a bug where trailing . in e-mail address was passing
  (the bug is actually in the weak regexp engine of the browser; I
  simplified the regexps to make it work).

  1.1.1: Removed restriction that countries must be preceded by a domain,
  so abc@host.uk is now legal.  However, there's still the 
  restriction that an address must end in a two or three letter
  word.

  1.1: Rewrote most of the function to conform more closely to RFC 822.

  1.0: Original  */



  /* The following variable tells the rest of the function whether or not
  to verify that the address ends in a two-letter country or well-known
  TLD.  1 means check it, 0 means don't. */

  var checkTLD=1;

  /* The following is the list of known TLDs that an e-mail address must end with. */

  var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;

  /* 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 +")*$");

  /* 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];

  // Start by checking that only basic ASCII characters are in the strings (0-127).

  for (i=0; i<user.length; i++) {
    if (user.charCodeAt(i)>127) {
      alert("Ths username contains invalid characters.");
      return false;
    }
  }
  for (i=0; i<domain.length; i++) {
    if (domain.charCodeAt(i)>127) {
      alert("Ths domain name contains invalid characters.");
      return false;
    }
  }

  // See if "user" is valid 

  if (user.match(userPat)==null) {

    // user is not valid

    alert("The username doesn't seem to be valid in your e-mail address, please correct before continuing.");
    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.  Check if it's valid.
 
  var atomPat=new RegExp("^" + atom + "$");
  var domArr=domain.split(".");
  var len=domArr.length;
  for (i=0;i<len;i++) {
    if (domArr[i].search(atomPat)==-1) {
      alert("The domain name in your e-mail address does not seem to be valid, please correct before continuing.");
      return false;
    }
  }

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

  if (checkTLD && domArr[domArr.length-1].length!=2 && domArr[domArr.length-1].search(knownDomsPat)==-1) {
    alert("Your e-mail address must end in a well-known domain or two letter " + "country.");
    return false;
  }

  // Make sure there's a host name preceding the domain.

  if (len<2) {
    alert("This address is missing a hostname!");
    return false;
  }

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

//  End emailCheck
}