var errorResponse;
function ToggleFieldset(id, state) {
    if (!document.getElementById) return false;
    var element = document.getElementById(id);
    if (state) {
        element.style.display = 'block';
    } else {
        element.style.display = 'none';
    }
}
// Custom label focus fixes safari and enables classes
// passes to blurClass and focusClass
// IE cannot use label.getAttribute('for') so use label.htmlFor instead
function focusInput() {
    focusLabels();
    if (!document.getElementsByTagName) return false;
    var inputs = document.getElementsByTagName("input");
    for (i = 0; i < inputs.length; i++) {
        inputs[i].onfocus = function() { focusClass(this); };
        inputs[i].onblur = function() { blurClass(this) };
    }
    var texts = document.getElementsByTagName("textarea");
    for (i = 0; i < texts.length; i++) {
        texts[i].onfocus = function() { focusClass(this); };
        texts[i].onblur = function() { blurClass(this) };
    }
    var selects = document.getElementsByTagName("select");
    for (i = 0; i < selects.length; i++) {
        selects[i].onfocus = function() { focusClass(this); };
        selects[i].onblur = function() { blurClass(this) };
    }
} //End of focusInput
function focusLabels() {
    if (!document.getElementsByTagName) return false;
    var labels = document.getElementsByTagName("label");
    for (i = 0; i < labels.length; i++) {
        if (!labels[i].htmlFor) continue;
        labels[i].onclick = function() {
            var field = this.htmlFor;
            var focusMe = document.getElementById(field);
            focusMe.focus();
        }
    }
} //End of focusLabels
function focusClass(id, nameClass) {
    if (id.className == "") {
        id.className = "Hovers";
    } else {
        id.className += " Hovers";
    }
} //End of focusClass
function blurClass(id, nameClass) {
    if (id.className == "Hovers") {
        id.className = "";
    } else {
        id.className = id.className.replace(new RegExp(" Hovers\\b"), "");
    }
} //End of blurClass
//window.onload = function() {
//focusInput ();
//}
//}

//modified from christian heilman http://www.onlinetools.org/articles/unobtrusivejavascript/chapter5.html
function checkform(of) {
    try {
        checkFields(); //this is for the HTMLEditor code to work - see editor.js
    }
    catch (ex) {
    }

    if (!document.getElementById || !document.createTextNode) { return; }
    if (!document.getElementById('required')) { return; }
    //setup our variables

    var errorID = 'errorMsg';
    var errorClass = 'showError'
    var errorMsg = 'Please enter or change the fields marked with a ';
    var errorTitle = 'This field has an error!';
    // create an array of all required inputs
    var reqfields = document.getElementById('required').value.split(',');
    //create array of all error messages
    //var 
    //alert(errorResponse);
    // Cleanup old mess
    // if there is an old errormessage field, delete it
    if (document.getElementById(errorID)) {
        var em = document.getElementById(errorID);
        em.parentNode.removeChild(em);
    }
    // remove old classes from the required fields
    for (var i = 0; i < reqfields.length; i++) {
        var f = document.getElementById(reqfields[i]);
        if (f) {
            if (f.parentNode.className == "required") {

            } else {
                f.parentNode.className = f.parentNode.className.replace(new RegExp(" showError\\b"), "");
            }
        }
    } //End of the for loop

    // loop over required fields
    var errorArray = new Array();
    for (var i = 0; i < reqfields.length; i++) {
        // check if required field is there
        var f = document.getElementById(reqfields[i]);
        if (!f) { continue; }
        // test if the required field has an error, 
        // according to its type
        // maybe need to add radio as required element.
        //need to add more info on whats wrong...
        // use checkConfirm to match with a confirmed field
        //if fieldset we need different options.
        if (f.getElementsByTagName('input').length > 0) {
            var inputArray = f.getElementsByTagName('input')
            var s = 0;
            for (var p = 0; p < inputArray.length; p++) {
                if (inputArray[p].checked == true) {
                    s++
                } else { }

            } if (s == 0) { errorArray[i] = f.id; showErrorDiv(f, true); }
        } else {
            switch (f.type.toLowerCase()) {

                case 'text':

                    showErrorDiv(f, false);
                    if (f.id.substr(0, 5).toLowerCase() == 'email')
                        checkemail = true
                    else checkemail = false
                    if (f.className.substr(f.className.length - 4, 4) == "num1")
                        isnum1 = true
                    else isnum1 = false
                    if (f.id.substr(0, 8).toLowerCase() == "postcode")
                        isPostcode = true
                    else isPostcode = false
					if (f.id.substr(0, 8).toLowerCase() == 'username')
                        chkusername = true
                    else chkusername = false
					
                    if (f.value == '' && !checkemail || !checkConfirm(f.id)) { errorArray[i] = f.id }
                    if (checkemail && !cf_isEmailAddr(f.value) || !checkConfirm(f.id)) { errorArray[i] = f.id }
                    if (isnum1 && !cf_isNumeric(f.value) || !checkConfirm(f.id)) { errorArray[i] = f.id }
                    if (isPostcode && !cf_isPostcode(f.value) || !checkConfirm(f.id)) { errorArray[i] = f.id }
					if (chkusername && !checkUsername(f.value,i) || !checkConfirm(f.id)) { errorArray[i] = f.id }
									
                    break;
                case 'textarea':
                    showErrorDiv(f, false);
                    if (f.value == '') { errorArray[i] = f.id }
                    break;
                case 'checkbox':
                    showErrorDiv(f, true);
                    if (!f.checked) { errorArray[i] = f.id }
                    break;
                case 'select-one':
                    //alert('select');
                    showErrorDiv(f, false);
                    if (f.options[f.selectedIndex].value == '') { errorArray[i] = f.id }
                    break;
                case 'password':
                    //check to see wether password needs to be confirmed
                    if (!checkPassword(f.value, i) || !checkConfirm(f.id)) { errorArray[i] = f.id; }
                    break;
                case 'file':
                    showErrorDiv(f, false);
                    if (trim(f.value) == '') { errorArray[i] = f.id }
                    break;
            } //End of the switch statement
        }
    } //End of the for loop
     ok = cf_adderr(errorArray, errorID);
    if (ok && document.getElementById('DateofBirth')&& undoDisable() ) {
        undoDisable();
    }
    return ok;
} //End of checkForm

function showErrorDiv(f, chkBox) {
    if (f.parentNode.className == "required") {
    } else {
        //ignore whitespace
        var thisDiv = document.createElement("span");
        thisDiv.className = "required";
        if (chkBox == false) {
            var thisLabel = realPreviousSibling(f);
            //use f.parentNode.insertBefore so the location 'f' is a child
            f.parentNode.insertBefore(thisDiv, f);
            thisDiv.appendChild(thisLabel);
            thisDiv.appendChild(f);
        } else {// checkbox needs label after input
            var thisLabel = realNextSibling(f);
            f.parentNode.insertBefore(thisDiv, f);
            thisDiv.appendChild(f);
            var addBr = document.createElement('br');
            thisDiv.appendChild(thisLabel);
            thisDiv.appendChild(addBr);
        }
    }
}


function cf_isEmailAddr(str) {
    return str.match(/^[\w-]+(\.[\w-]+)*@([\w-]+\.)+[a-zA-Z]{2,7}$/);
}

function cf_isNumeric(str) {
    /* return  Not number */
    /*if (str.match(/\D/g) == null ) */
    matched = str.match(/[0-9\s]{0,20}/g);
    //alert ( matched[0].length )
    if (matched != null && matched[0].length == str.length )
        return true;
    else
        return false;
}


function cf_isPostcode(str) {
    var matched =str.match(/[0-9A-Z\s]{5,8}/gi)
    if (matched != null && matched[0].length == str.length)
        return true
    else
        return false;
}

function cf_HasAmpersand(str){

   if (str.lastIndexOf('&') >0){
  	    return true;
	 }
        return false;
}

// setup global error var
var errorUser = "";
var usernameError = ""
function checkUsername(strng, p){

if (strng == "") {
        errorUser = "Username must be entered. Please enter a value for this field.";
        usernameError = p;
        return false;
    } else if (cf_HasAmpersand(strng)){
        errorUser = "The username contains illegal characters.";
        usernameError = i;
        return false; 
	}	
	else{
	    return true;
	}
	
}

// setup global error var
var error = "";
var passwordError = ""
//pass through errorArray so we can show custom message if needed.
function checkPassword(strng, p) {
    //var illegalChars = /[\W_]/; // allow only letters and numbers
    if (strng == "") {
        error = "You didn't enter a password.";
        passwordError = p;
        return false;
    } else if ((strng.length < 6) || (strng.length > 20)) {
        error = "The password is the wrong length.";
        passwordError = i;
        return false;
        //} else if (illegalChars.test(strng)) {
        //	error = "The password contains illegal characters.";alert(error);
        //	passwordError=i;
        //	return false;
    } else if (cf_HasAmpersand(strng)){
	    error="The password contains illegal characters.";
		passwordError = i;
		return false;
	}
	
	else {
        return true
    }
}



function checkConfirm(str) {
    //do password check - only send it once.
    var myString = str;
    var test = myString.length;
    //test to see if confirm password2 exists
    if (myString.charAt(test - 1) != '2') {
        var passwordCheck = str + "2";
        //should do error check for a login page where no confirm is required
        if (!document.getElementById(passwordCheck)) return true;
        var confirms = document.getElementById(passwordCheck);
        var pass = document.getElementById(str);

        if (confirms.value != pass.value) {
            //passwords do not match
            return false;
        } else {
            //passwords match
            return true;
        }
    }
}

function doMessage() {
    for (i = 0; i < errorResponse.length; i++) {

         if (errorResponse[i] == "Username") {
            errorResponse[i] =  errorUser;
        }

        else if (errorResponse[i] == "Postcode") {
            errorResponse[i] = errorResponse[i] + "  must be entered. ";
            errorResponse[i] = errorResponse[i] + " Please enter the postcode in one of the following formats:|Standard UK: CV31 3PG | Armed forces: BFPO 40 | Overseas: 12345";


        }
        else if (errorResponse[i] == "Tel") {
            //errorResponse[i] = errorResponse[i] + "  must be entered. ";
            errorResponse[i] = "Phone numbers are restricted to digits and spaces. Please check the number you have entered.";
        }
        else if (errorResponse[i] == "Mobile") {
            //errorResponse[i] = errorResponse[i] + "  must be entered. ";
            errorResponse[i] =  "Mobile numbers are restricted to digits and spaces. Please check the number you have entered.";
        }

        else if (errorResponse[i] == "Email" || errorResponse[i] == "Your Email Address") {
            //errorResponse[i] = errorResponse[i] + "  must be entered. ";
        //errorResponse[i] = errorResponse[i] + "The e-mail address you have entered is incorrect.";
         errorResponse[i] = "The e-mail address you have entered is incorrect.";
        }
          else if (errorResponse[i] == "Accept terms and conditions") {
            errorResponse[i] = "You must accept our Terms and Conditions to proceed to the next step.";
        }        
        else if ( errorResponse[i].substr(0,8) == "Donation" ) {
        errorResponse[i] = errorResponse[i] + ": Entered amount is incorrect. Please check your entry and try again.";

    }
        else if (errorResponse[i] == "Password") {
        errorResponse[i] = error;
    }
       else {
            errorResponse[i] = errorResponse[i] + "  must be entered. Please enter a value for this field.";
        }

    }

}
/* Tool methods */
function cf_adderr(errorArray, errorID) {
    errorResponse = document.getElementById('errorResponse').value.split(',');
    doMessage();
    for (i = 0; i < errorArray.length; i++) {
        if (errorArray[i] != null) {
            o = document.getElementById(errorArray[i]);
            //alert(o)
            o.parentNode.className += " showError";
            // Check if there is no error message
            if (!document.getElementById(errorID)) {
                var msg = document.createElement('div');
                msg.id = errorID;
                var container = document.getElementById('errorContainer');
                container.appendChild(msg);
                var errorString = 'The following errors were found, please correct them and resubmit the form';
                var errorText = document.createTextNode(errorString);
                var txtContain = document.createElement('h2');
                txtContain.appendChild(errorText);
                msg.appendChild(txtContain);
            } // End of if
            // Check if there is no error message
            if (!document.getElementById(errorID + 'List')) {
                // create errormessage ul
                var em = document.createElement('ol');
                em.id = errorID + 'List';
            }
            var newLi = document.createElement('li');
            var newHref = document.createElement('a');
            if (document.createAttribute) {
                var attrHREF = document.createAttribute("href");
                attrHREF.nodeValue = "#" + o.id;
                var thisHref = o.id;
            } else {

            }
            var thisFocus = 'focusMe(\'' + thisHref + '\')';
            // if the node's attribute already exists
            // then replace its value FIX IE 5
            if (document.getAttributeNode) {
                if (newHref.getAttributeNode("onclick")) {
                    //alert('ie');
                    newHref.removeAttribute("onclick")
                }
            }

            newHref.setAttribute("onclick", thisFocus);

            //check for password error
            if (passwordError == i && passwordError != "") {
                var newText = document.createTextNode(error);
            } else {
                var newText = document.createTextNode(errorResponse[i]);
            }
            newHref.appendChild(newText);
            if (document.setAttributeNode) {
                newHref.setAttributeNode(attrHREF);
            } else {
                newHref.href = "#" + o.id;
            }
            newLi.appendChild(newHref);
            em.appendChild(newLi);
            msg.appendChild(em);
        } //End of if(errorArray[i]!=null)
    } //End of the for loop

    if (errorArray.length > 0) {
        this.focus = '#errorContainer';
        this.location = '#errorContainer';
        document.title = 'This form has errors please try again';
        return false;
    } else { return true}
} //End of the function cf_adderr

function focusMe(thisFocus) {
    //Using setTimeout to let firefox focus :(
    setTimeout('document.getElementById(\'' + thisFocus + '\').focus()', 100);
}

/* try and fix previousSibling having an extra text element in gecko */
function realPreviousSibling(node) {
    var tempNode = node.previousSibling;
    var tempNode = node.previousSibling;
    while (tempNode.nodeType != 1) {
        if (tempNode == null) continue;
    }
    return tempNode;


}

function realNextSibling(node) {
    var tempNode = node.nextSibling;
    while (tempNode.nodeType != 1) {
        tempNode = tempNode.nextSibling;
    }
    return tempNode;
}

function trim(str, chars) {
	return ltrim(rtrim(str, chars), chars);
}
 
function ltrim(str, chars) {
	chars = chars || "\\s";
	return str.replace(new RegExp("^[" + chars + "]+", "g"), "");
}
 
function rtrim(str, chars) {
	chars = chars || "\\s";
	return str.replace(new RegExp("[" + chars + "]+$", "g"), "");
}