function checkFields(detNum){

	if(myform.name.value ==""){
		alert("Enter valid name");
		myform.name.focus();
		return;
	}

	if(myform.address.value ==""){
		alert("Enter valid address");
		myform.address.focus();
		return;
	}

	if(myform.country.value == ""){
		alert("Select a country");
		myform.country.focus();
		return;
	}

	if(!emailCheck(myform.email.value))
		return;

	if(myform.deliver.value == "0"){
		alert("Select which do you prefer to deliver your quote.");
		myform.deliver.focus();
		return;
	}


	//check product details
	var exitme = false;
	for(i = 1; i <= detNum; i++)
	{
		//alert("round = " + i );

		myselection = eval("myform.usage" + i );
		if(myselection.selectedIndex == 0 )
		{
			alert("Please specify at Item No. " + i + " it is a Door, Window, Opening or others");
			myselection.focus();
			exitme = true;
			break;
		} else if(myselection.selectedIndex == (myselection.length - 1))
		{
			myspecify = eval("myform.specifyusage" + i );
			if(myspecify.value == "" | (myspecify.value.match("Please specify") != null))
			{
			alert("Please specify at Item No. " + i + " what type you want");
			myspecify.focus();
			exitme = true;
			break;

			}
		}
		
		// item check
		for(j = 0; j < 3; j++)
		{
			myObjcheck = eval("myform.item" + i + "[" + j + "].checked");
			if(myObjcheck)
			{

				if(j == 0)
				{
					bladeSelection = eval("myform.blade" + i + ".selectedIndex == 0");
					if(bladeSelection) 
					{
						alert("Under Timber Shutters, select what type of blade");
						eval("myform.blade" + i + ".focus()");
						exitme = true;
							
					}
	
				} else if (j== 2)
				{
					bladeSelection = eval("myform.slat" + i + ".selectedIndex == 0");
					if(bladeSelection) 
					{
						alert("Under Timber Blinds, select what type of slat");
						eval("myform.slat" + i + ".focus()");
						exitme = true;

					}
					

				} 
				break;
				
			}
			else
			{
				if(j == 2)
				{
					alert("Under the product menu of item no." + i + " select what product you want to quote");
					exitme = true;
					break;
				}
			}
			
		} // end for loop item check


		// check color
		myObj = eval("myform.color" + i );
		if((myObj.selectedIndex == 0) & !exitme)
		{
			alert("Select what color you want to use");
			myObj.focus();
			return;
		} else
		{
			if(myObj.selectedIndex == 6)
			{
				myPrecolor = eval("myform.mycolor" + i );
				if(myPrecolor.value == "" | (myPrecolor.value.match("Write color") != null ))
				{
					alert("Please specify what color you want.");
					myPrecolor.focus();
					return;
				}


			}

		} // end color check
		
		
		// starting checking details
		if(!exitme) {
			for(ii = 0; ii < detailArray.length; ii++)
			{
				myObj = eval("myform.usage" + i );
				if( myObj.value != "Select one" )
				{
					// start location
					if(!ii) 
					{
						myObj = eval("myform." + detailArray[ii] + i);
						if(myObj.selectedIndex == 0)
						{
							alert("Please specify what location you want to apply");
							myObj.focus();
							return;

						} else if(myObj.selectedIndex == (myObj.length - 1))
						{
							myObj = eval("myform.specifylocation" + i );
							if(myObj.value == "" | (myObj.value.match("Please specify") != null ))
							{
								alert("Please specify what location you want to apply");
								myObj.focus();
								return;
							}
					

						}
					}
					else
					{

						chkobj = eval("myform." + detailArray[ii]  + i );
						if(isNaN(chkobj.value) | chkobj.value == "")
						{
							switch(ii)
							{
								case 1:
								msg = "Quantity";
								break;

								case 2:
								msg = "Width";
								break;

								case 3:
								msg = "Height";
								break;

								case 4:
								msg = "Mid-rail Height";
								break;

								case 5:
								msg = "Panels";
								break;

							}

	
							alert(msg + " must be a valid integer");
							chkobj.focus();
							exitme = true;
							break;
					
						}
					} //end location

				}// end myObj
			}//end for loop details
		}
		// end details

		// check for sliding, bifolding and hinged
		myObj = eval("myform.usage" + i);
		if((myObj.value != "Select one") & !exitme )
		{
			sSlide 	= eval("myform.sliding" + i  + ".checked ");
			sBifold 	= eval("myform.bifolding" + i  + ".checked ");
			sHinged 	= eval("myform.hinged" + i  + ".checked ");	
			if( !sSlide  & !sBifold  & !sHinged )
			{
				alert("Choose either sliding, bi-folding or hinged.");
				exitme = true;
				//break;
			}
		} // end check for sliding, bifolding and hinged

	if(exitme) return;
	}
	
	if(exitme) return;

	myform.submit();


}



function emailCheck (emailStr) {


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.");
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 does not seem to be valid.");
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("The 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;
}