function validate(){	
		if(isEmpty(document.quote.fname.value)){
			alert("Enter name");
			document.quote.fname.focus();
			return false;
		}	
		if(isEmpty(document.quote.phone.value)){
			alert("Enter Phone");
			document.quote.phone.focus();
			return false;
		}		
		if(isNaN(document.quote.phone.value)){
			alert("Please enter your  phone number.\n it must be a number. No spaces or blanks allowed.");
			document.quote.phone.focus();
			return false;
		}				
		if(isEmpty(document.quote.email.value)){
			alert("Enter e-mail");
			document.quote.email.focus();
			return false;
		}
		if(!emailCheck(document.quote.email.value)){
		document.quote.email.focus();
		return false; 
	    }
		if(isEmpty(document.quote.company.value)){
			alert("Enter Company");
			document.quote.company.focus();
			return false;
		}	
		if(isEmpty(document.quote.address1.value)){
			alert("Enter Address1");
			document.quote.address1.focus();
			return false;
		}		
		if(isEmpty(document.quote.city.value)){
			alert("Enter City");
			document.quote.city.focus();
			return false;
		}	
		if(isEmpty(document.quote.fstate.value)){
			alert("Enter State");
			document.quote.fstate.focus();
			return false;
		}	
		if(isEmpty(document.quote.zip.value)){
			alert("Enter Zip Code");
			document.quote.zip.focus();
			return false;
		}		
		if(isNaN(document.quote.zip.value)){
			alert("Zip Code should be a number.");
			document.quote.zip.focus();
			return false;
		}	
		if(isEmpty(document.quote.country.value)){
			alert("Enter country");
			document.quote.country.focus();
			return false;
		}	
		if(isEmpty(document.quote.deliverydate.value)){
			alert("Enter Delivery Date");
			document.quote.deliverydate.focus();
			return false;
		}
		if(document.quote.stamping.value!=1)
		{
			if(isEmpty(document.quote.outsideDiameter.value)){
				alert("Enter Outside Diameter");
				document.quote.outsideDiameter.focus();
				return false;
			}
			if(isEmpty(document.quote.insideDiameter.value)){
				alert("Enter Inside Diameter");
				document.quote.insideDiameter.focus();
				return false;
			}	
			if(isEmpty(document.quote.thickness.value)){
				alert("Enter Thickness");
				document.quote.thickness.focus();
				return false;
			}	
			if(isEmpty(document.quote.materialType.value)){
				alert("Enter MaterialType");
				document.quote.materialType.focus();
				return false;
			}
		}
		if(isEmpty(document.quote.quantity.value)){
			alert("Enter Quantity");
			document.quote.quantity.focus();
			return false;
		}
		
		return true;
	}
	
	
function isEmpty(s)
{   
return ((s == null) || (s.length == 0) || (s.substr(0,1) == " "))
}

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 +")*$")


/* 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 E-mail address is missing a hostname!"
   alert(errStr)
   return false
   }
   // If we've gotten this far, everything's valid!
return true   
}