//VALIDATE PHONE NUMBER
// Declaring required variables
var digits = "0123456789";
// non-digit characters which are allowed in phone numbers
var phoneNumberDelimiters = "()- ";
// characters which are allowed in international phone numbers
// (a leading + is OK)
var validWorldPhoneChars = phoneNumberDelimiters + "+";
// Minimum no of digits in an international phone no.
var minDigitsInIPhoneNumber = 10;

function isInteger(s){
	var i;
	for (i = 0; i < s.length; i++){   
		// Check that current character is number.
		var c = s.charAt(i);
		if (((c < "0") || (c > "9"))) return false;
	}
	// All characters are numbers.
	return true;
}

function trim(s){
	var i;
	var returnString = "";
	// Search through string's characters one by one.
	// If character is not a whitespace, append to returnString.
	for (i = 0; i < s.length; i++){
		// Check that current character isn't whitespace.
		var c = s.charAt(i);
		if (c != " ") returnString += c;
	}
	return returnString;
}

function stripCharsInBag(s, bag){
	var i;
	var returnString = "";
	// Search through string's characters one by one.
	// If character is not in bag, append to returnString.
	for (i = 0; i < s.length; i++){   
		// Check that current character isn't whitespace.
		var c = s.charAt(i);
		if (bag.indexOf(c) == -1) returnString += c;
	}
	return returnString;
}

function checkInternationalPhone(strPhone){
	var bracket=3
	strPhone=trim(strPhone)
	if(strPhone.indexOf("+")>1) return false
	if(strPhone.indexOf("-")!=-1)bracket=bracket+1
	if(strPhone.indexOf("(")!=-1 && strPhone.indexOf("(")>bracket)return false
	var brchr=strPhone.indexOf("(")
	if(strPhone.indexOf("(")!=-1 && strPhone.charAt(brchr+2)!=")")return false
	if(strPhone.indexOf("(")==-1 && strPhone.indexOf(")")!=-1)return false
	s=stripCharsInBag(strPhone,validWorldPhoneChars);
	return (isInteger(s) && s.length >= minDigitsInIPhoneNumber);
}
//================================================================

/* CHECK EMAIL */
function emailCheck(emailStr){

	/* 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.");
		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;
	}

return true;
}
//================================================================




function validate_form(){
	var formTotalElements = document.frm_frm.elements.length-1;
			
	var validated = false;
	
	for(i=0; i<=formTotalElements; i++){
		if(document.frm_frm.elements[i].value == "" && document.frm_frm.elements[i].title == "required" && document.frm_frm.elements[i].type != "checkbox"){
			alert("!!נא למלא את כל השדות המסומנים באדום");
			document.frm_frm.elements[i].focus();
			validated = false;
			break;
		}else if(document.frm_frm.elements[i].checked == false && document.frm_frm.elements[i].title == "required" && document.frm_frm.elements[i].type == "checkbox"){
			alert("!נא למלא את כל השדות המסומנים באדום");
			document.frm_frm.elements[i].focus();
			validated = false;
			break;
		}else if(document.frm_frm.elements[i].id == "phone" || document.frm_frm.elements[i].id == "cell_phone"){
			if(checkInternationalPhone(document.frm_frm.elements[i].value) == false){
				alert("מספר הטלפון או הנייד חייב להיות מספרים בלבד!");
				document.frm_frm.elements[i].value = "";
				document.frm_frm.elements[i].focus();
				validated = false;
				break;
			}
		}else if(document.frm_frm.elements[i].id == "email"){
			if(emailCheck(document.frm_frm.elements[i].value) == false){
				alert("הכנס/י כתובת מייל חוקית");
				document.frm_frm.elements[i].value = "";
				document.frm_frm.elements[i].focus();
				validated = false;
				break;
			}
		}else{
			validated = true;
			//break;
		}
	}
	return validated;
}