/**
 * DHTML phone number validation script. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/)
 */

// 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 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){
	s=stripCharsInBag(strPhone,validWorldPhoneChars);
	return (isInteger(s) && s.length >= minDigitsInIPhoneNumber);
}

function ValidateForm(){
	var Phone=document.frmSample.txtPhone
	
	if ((Phone.value==null)||(Phone.value=="")){
		alert("Please Enter your Phone Number")
		Phone.focus()
		return false
	}
	if (checkInternationalPhone(Phone.value)==false){
		alert("Please Enter a Valid Phone Number")
		Phone.value=""
		Phone.focus()
		return false
	}
	return true
 }
/* END SMARTYWEB CODE */

function checkAdd() {
	var err = 0;
	var err_txt = "";
	var msg_txt = "";
	var intro_msg = "\n\rThe following information is required: ";

	if (document.regForm.conPhone.checked == false && document.regForm.conEmail.checked == false) {
		err++;
		msg_txt += "\n\r\tHow would you like to be contacted?";
	} else if (document.regForm.conPhone.checked == true) {
		if (document.regForm.custPhone.value == "" ) {
			err++;
			msg_txt += "\n\r\tPhone";
		} else if (checkInternationalPhone(document.regForm.custPhone.value)==false){
			err++;
			msg_txt += "\n\r\tValid phone number format is required. Please include area code.";
		}
	} else if (document.regForm.conEmail.checked == true) {
		if (document.regForm.custEmail.value == "" ) {
			err++;
			msg_txt += "\n\r\tEmail";
		}
		if (document.regForm.custEmail2.value == "" ) {
			err++;
			msg_txt += "\n\r\tRe-Type Email";
		}
		if (document.regForm.custEmail.value != document.regForm.custEmail2.value) {
			err++;
			msg_txt += "\n\r\tThe email addresses you entered do not match.";
		}
	}
	
	if (document.regForm.custFirst.value == "" ) {
		err++;
		msg_txt += "\n\r\tFirst name";
	}
	
	if (document.regForm.custLast.value == "" ) {
		err++;
		msg_txt += "\n\r\tLast name";
	}

	if (err > 0) {
		if (msg_txt != "") {
			err_txt = intro_msg+msg_txt+"\n\r"+err_txt;
		}
		alert(err_txt);
		return false;
	}  else {
		return true;
	}
}