var firefox = document.getElementById && !document.all;

function getControl(ID) {
    return document.getElementById(ID)
}

function numericOnly(e) {

    var keycode = 0;

    if (!firefox) {
        keycode = window.event.keyCode;
    } else {
        keycode = e.charCode;
    }
    if (firefox && keycode == 0) {
        return true;
    }

    if (
	    keycode == 8 || //backspace
	    keycode == 127  //delete
	    )		// \
    {
        return true;
    }

    if (keycode < 48 || keycode > 57) {
        if (!firefox) {
            window.event.keyCode = 8;
        } else {
            return false;
        }
    }
}

function dayPhoneOnly(e, contact) {
    var blnIncorrectStart = false;
    var keycode = 0;

    if (!firefox) {
        keycode = window.event.keyCode;
    } else {
        keycode = e.charCode;
    }
    if (firefox && keycode == 0) {
        return true;
    }

    if (
	    keycode == 8 || //backspace
	    keycode == 127  //delete
	    )		// \
    {
        return true;
    }

    if (contact.length == 0) {
        if (keycode != 48) {
            blnIncorrectStart = true;
        }
    }

    if (blnIncorrectStart) {
        if (!firefox) {
            window.event.keyCode = 8;
        } else {
            return false;
        }
    }

    return numericOnly(e);
}

function mobilePhoneOnly(e, mobile) {
    var blnIncorrectStart = false;

    var keycode = 0;

    if (!firefox) {
        keycode = window.event.keyCode;
    } else {
        keycode = e.charCode;
    }
    if (firefox && keycode == 0) {
        return true;
    }

    if (
	    keycode == 8 || //backspace
	    keycode == 127  //delete
	    )		// \
    {
        return true;
    }

    if (mobile.length == 0) {
        if (keycode != 48) {
            blnIncorrectStart = true;
        }
    }
    if (mobile.length == 1) {
        if (keycode != 52) {
            blnIncorrectStart = true;
        }
    }
    if (blnIncorrectStart) {
        if (!firefox) {
            window.event.keyCode = 8;
        } else {
            return false;
        }
    }

    numericOnly(e);
}

function mobilePhoneNZOnly(e, mobile) {
    var blnIncorrectStart = false;

    var keycode = 0;

    if (!firefox) {
        keycode = window.event.keyCode;
    } else {
        keycode = e.charCode;
    }
    if (firefox && keycode == 0) {
        return true;
    }

    if (
	    keycode == 8 || //backspace
	    keycode == 127  //delete
	    )		// \
    {
        return true;
    }

    if (mobile.length == 0) {
        if (keycode != 48) {
            blnIncorrectStart = true;
        }
    }
    //    if (mobile.length == 1) {
    //        if (keycode != 52) {
    //            blnIncorrectStart = true;
    //        }
    //    }
    if (blnIncorrectStart) {
        if (!firefox) {
            window.event.keyCode = 8;
        } else {
            return false;
        }
    }

    numericOnly(e);
}

function alphaOnly(e) {
    var keycode = 0;

    if (!firefox) {
        keycode = window.event.keyCode;
    } else {
        keycode = e.charCode;
    }

    if (firefox && keycode == 0) {
        return true;
    }

    if (
	    keycode == 8 || //backspace
	    keycode == 127 || //delete
	    keycode == 32 || // space
		keycode == 39 || // '
		keycode == 45 || // -
		keycode == 92 || // /
		keycode == 47)		// \
    {
        return true;
    }

    if ((keycode < 65 || keycode > 90) && (keycode < 97 || keycode > 122)) {
        if (!firefox) {
            window.event.keyCode = 8;
        } else {
            return false;
        }
        //window.event.cancelBubble = true;
    }
}

function alphaNumericOnly(e) {
    var keycode = 0;

    if (!firefox) {
        keycode = window.event.keyCode;
    } else {
        keycode = e.charCode;
    }

    if (firefox && keycode == 0) {
        return true;
    }

    if (keycode == 32) { //space bar
        return true;
    }

    if (
	    keycode == 8 || //backspace
	    keycode == 127  //delete
	    )		// \
    {
        return true;
    }

    if (keycode == 45 || // -
		keycode == 44 || // ,
		keycode == 47 || // \
		keycode == 92 || // /
		keycode == 39)		// '
    {
        return true;
    }

    if ((keycode < 65 || keycode > 90) && (keycode < 97 || keycode > 122) && (keycode < 48 || keycode > 57)) {
        if (!firefox) {
            window.event.keyCode = 8;
        } else {
            return false;
        }
        //window.event.cancelBubble = true;
    }
}

function currencyOnly(keycode) {

    if (keycode == 46) { // period
        return true;
    }

    if (firefox && keycode == 0) {
        return true;
    }

    if (
	    keycode == 8 || //backspace
	    keycode == 127  //delete
	    )		// \
    {
        return true;
    }

    if (keycode < 48 || keycode > 57) {
        return false;
    }
    return true;
}

function currencyOnly(e) {

    var keycode = e.keyCode;
    
    if (keycode == 46) { // period
        return true;
    }

    if (firefox && keycode == 0) {
        return true;
    }

    if (
	    keycode == 8 || //backspace
	    keycode == 127  //delete
	    )		// \
    {
        return true;
    }

    if (keycode < 48 || keycode > 57) {
        return false;
    }
    return true;
}

function checkPurchaseAmount(e) {

    var keycode = 0;

    if (!firefox) {
        keycode = window.event.keyCode;
    } else {
        keycode = e.charCode;
    }

    if (!currencyOnly(keycode)) {
        if (!firefox) {
            window.event.keyCode = 8;
            return false;
        } else {
            return false;
        }
    }



    var xx = document.getElementById("form1");
    var val = xx.purchaseamount.value

    var len = val.length;

    if (len == 4 && val.indexOf(".") < 0 && keycode != 46) {
        if (!firefox) {
            window.event.keyCode = 8;
            return false;
        } else {
            return false;
        }
    }

    if (val.indexOf(".") > -1 && val.indexOf(".") == val.length - 3) {
        if (!firefox) {
            window.event.keyCode = 8;
            return false;
        } else {
            return false;
        }
    }

}

function emailCharsOnly(e) {
    var keycode = 0;

    if (!firefox) {
        keycode = window.event.keyCode;
    } else {
        keycode = e.charCode;
    }

    if (firefox && keycode == 0) {
        return true;
    }

    //alert(keycode);
    //period               @             _
    if (keycode == 45 || keycode == 46 || keycode == 64 || keycode == 95) { //.@_
        return true;
    }

    if ((keycode < 48 || keycode > 57) && (keycode < 65 || keycode > 90) && (keycode < 97 || keycode > 122)) {
        if (!firefox) {
            window.event.keyCode = 8;
        } else {
            return false;
        }
        //window.event.cancelBubble = true;
    }
}

function checkLength(e, len) {
    var obj
    if (!firefox) {
        obj = window.event.srcElement;
    } else {
        obj = e.target;
    }
    if (obj.value == "") { return; }

    if (obj.value.length < len) {
        alert("Please make sure this field is " + len + " numbers long");
        obj.focus();
    }
}


function extractNumber(obj, decimalPlaces, allowNegative) {
    var temp = obj.value;

    // avoid changing things if already formatted correctly
    var reg0Str = '[0-9]*';
    if (decimalPlaces > 0) {
        reg0Str += '\\.?[0-9]{0,' + decimalPlaces + '}';
    } else if (decimalPlaces < 0) {
        reg0Str += '\\.?[0-9]*';
    }
    reg0Str = allowNegative ? '^-?' + reg0Str : '^' + reg0Str;
    reg0Str = reg0Str + '$';
    var reg0 = new RegExp(reg0Str);
    if (reg0.test(temp)) return true;

    // first replace all non numbers
    var reg1Str = '[^0-9' + (decimalPlaces != 0 ? '.' : '') + (allowNegative ? '-' : '') + ']';
    var reg1 = new RegExp(reg1Str, 'g');
    temp = temp.replace(reg1, '');

    if (allowNegative) {
        // replace extra negative
        var hasNegative = temp.length > 0 && temp.charAt(0) == '-';
        var reg2 = /-/g;
        temp = temp.replace(reg2, '');
        if (hasNegative) temp = '-' + temp;
    }

    if (decimalPlaces != 0) {
        var reg3 = /\./g;
        var reg3Array = reg3.exec(temp);
        if (reg3Array != null) {
            // keep only first occurrence of .
            //  and the number of places specified by decimalPlaces or the entire string if decimalPlaces < 0
            var reg3Right = temp.substring(reg3Array.index + reg3Array[0].length);
            reg3Right = reg3Right.replace(reg3, '');
            reg3Right = decimalPlaces > 0 ? reg3Right.substring(0, decimalPlaces) : reg3Right;
            temp = temp.substring(0, reg3Array.index) + '.' + reg3Right;
        }
    }

    obj.value = temp;
}

function blockNonNumbers(obj, e, allowDecimal, allowNegative) {
    var key;
    var isCtrl = false;
    var keychar;
    var reg;

    if (window.event) {
        key = e.keyCode;
        isCtrl = window.event.ctrlKey
    }
    else if (e.which) {
        key = e.which;
        isCtrl = e.ctrlKey;
    }

    if (isNaN(key)) return true;

    keychar = String.fromCharCode(key);

    // check for backspace or delete, or if Ctrl was pressed
    if (key == 8 || isCtrl) {
        return true;
    }

    reg = /\d/;
    var isFirstN = allowNegative ? keychar == '-' && obj.value.indexOf('-') == -1 : false;
    var isFirstD = allowDecimal ? keychar == '.' && obj.value.indexOf('.') == -1 : false;

    return isFirstN || isFirstD || reg.test(keychar);
}

function validateTermsCheckbox(source, args) {
    var terms = getControl("ctl00_cphMain_chkTerms");

    if (terms.checked != 1) {
        args.IsValid = false;
    }
}

function validateOver18Checkbox(source, args) {
    var age = getControl("ctl00_ContentPlaceHolder1_ddlAge");

    if (age.value != null && age.value != "") {
        var minAge = age.value.substring(0, 2) - 0;

        if (minAge < 18) {
            try {
                var over18 = getControl("ctl00_ContentPlaceHolder1_cbOver18");

                if (over18.checked != 1) {
                    args.IsValid = false;
                }
            }
            catch (err) { }
        }
    }
}

function validateUniqueCodeCheckbox(source, args) {
    var uniquecode = getControl("ctl00_ContentPlaceHolder1_cbUniqueCode");

    if (uniquecode.checked != 1) {
        args.IsValid = false;
    }
}

function validateGender(sender, args) {
    var cbMale = getControl("rbMale");
    var cbFemale = getControl("rbFemale");

    if (cbMale.checked != 1 && cbFemale.checked != 1)
        args.IsValid = false;
    else
        args.IsValid = true;
}

function validateDateOfBirth(sender, args) {
    var ddlDay = getControl("ddlDay");
    var ddlMonth = getControl("ddlMonth");
    var ddlYear = getControl("ddlYear");

    if (ddlDay.value != "" && ddlMonth.value != "" && ddlYear.value != "")
    {
        var dtDate;
        try {
            dtDate = ddlMonth.value + "/" + ddlDay.value + "/" + ddlYear.value

            if (isDate(dtDate)) {
                args.IsValid = true;
            }
            else {
                args.IsValid = false;
            }
         }
         catch (err) {
             args.IsValid = false;
         }
     
    }
}

function isDate(txtDate){   
    var objDate;  // date object initialized from the txtDate string   
    var mSeconds; // milliseconds from txtDate   
  
    // date length should be 10 characters - no more, no less   
    if (txtDate.length != 10) return false;   
  
  // extract day, month and year from the txtDate string   
  // expected format is mm/dd/yyyy   
  // subtraction will cast variables to integer implicitly   
  var day   = txtDate.substring(3,5)  - 0;   
  var month = txtDate.substring(0,2)  - 1; // because months in JS start with 0   
  var year  = txtDate.substring(6,10) - 0;   
  
  // third and sixth character should be /   
  if (txtDate.substring(2,3) != '/') return false;   
  if (txtDate.substring(5,6) != '/') return false;   
  
  // test year range   
  if (year < 999 || year > 3000) return false;   
 
  // convert txtDate to the milliseconds   
  mSeconds = (new Date(year, month, day)).getTime();   
  
  // initialize Date() object from calculated milliseconds   
  objDate = new Date();   
  objDate.setTime(mSeconds);   
  
  // compare input parameter date and created Date() object   
  // if difference exists then date isn't valid   
  if (objDate.getFullYear() != year)  return false;   
  if (objDate.getMonth()    != month) return false;   
  if (objDate.getDate()     != day)   return false;   
  
  // otherwise return true   
  return true;   
}

function checkMobileOrPhone(sender, args) {
    var mobile = getControl("ctl00_cphMain_txtMobile");
    var phone = getControl("ctl00_cphMain_txtHomePhone");

    if (mobile.value == "" && phone.value == "")
        args.IsValid = false;
    else
        args.IsValid = true;

    return false;
}

function validatePostcodeAgainstState(sender, args) {

    var txtPostcode = getControl("ctl00_cphMain_txtPostcode");
    var ddlState = getControl("ctl00_cphMain_rcbState");
    if (txtPostcode.value != null && txtPostcode.value != "" && ddlState.value != null && ddlState.value != "")
     {
        var postcodeIntValue = parseInt(txtPostcode.value.replace(/^[0]+/g,""));
        var state = "";
        if ((postcodeIntValue >= 1000 && postcodeIntValue <= 1999) ||
                (postcodeIntValue >= 2000 && postcodeIntValue <= 2599) ||
                (postcodeIntValue >= 2620 && postcodeIntValue <= 2898) ||
                (postcodeIntValue >= 2921 && postcodeIntValue <= 2999)) {
            state = "NSW";
        } else if ((postcodeIntValue >= 0200 && postcodeIntValue <= 0299) ||
                       (postcodeIntValue >= 2600 && postcodeIntValue <= 2619) ||
                       (postcodeIntValue >= 2900 && postcodeIntValue <= 2920)) {
            state = "ACT";
        } else if ((postcodeIntValue >= 3000 && postcodeIntValue <= 3999) ||
                       (postcodeIntValue >= 8000 && postcodeIntValue <= 8999)) {
            state = "VIC";
        } else if ((postcodeIntValue >= 4000 && postcodeIntValue <= 4999) ||
                       (postcodeIntValue >= 9000 && postcodeIntValue <= 9999)) {
            state = "QLD";
        } else if ((postcodeIntValue >= 5000 && postcodeIntValue <= 5799) ||
                       (postcodeIntValue >= 5800 && postcodeIntValue <= 5999)) {
            state = "SA";
        } else if ((postcodeIntValue >= 6000 && postcodeIntValue <= 6797) ||
                       (postcodeIntValue >= 6800 && postcodeIntValue <= 6999)) {
            state = "WA";
        } else if ((postcodeIntValue >= 7000 && postcodeIntValue <= 7799) ||
                       (postcodeIntValue >= 7800 && postcodeIntValue <= 7999)) {
            state = "TAS";
        } else if ((postcodeIntValue >= 0800 && postcodeIntValue <= 0899) ||
                       (postcodeIntValue >= 0900 && postcodeIntValue <= 0999)) {
            state = "NT";
        }

        if (state != ddlState.value)
            args.IsValid = false;
        else
            args.IsValid = true;
    }
    


}