/*
* File: standard.js
* Include with:
*/
function displayTerms() {
var n=open('/inc/terms.php','slide','width=600,height=410,status=no,toolbar=no,menubar=no,scrollbars=yes,resizable=yes');
}
function displayCredits() {
var n=open('/inc/credits.php','slide','width=600,height=410,status=no,toolbar=no,menubar=no,scrollbars=yes,resizable=yes');
}
function displayReferences() {
var n=open('/inc/references.php','slide','width=600,height=410,status=no,toolbar=no,menubar=no,scrollbars=yes,resizable=yes');
}
function openDragWin(winName) {
var n=open('dragon.php','Dragons','width=600,height=410,status=1,toolbar=1,menubar=1,scrollbars=1,resizable=1');
}
function openWin(winName) {
var thisWin;
thisWin = winName;
// Open window
window.open(winName, "Popup", "width=280, height=250, resizable=no");
}
function closeWin() {
// NB - user receives Warning Message if the current window wasn't opened by a parent browser window
// adapt URL and uncomment following line if you want to select parent window's URL
// window.opener.location = "http://jnewton9.valuehost.co.uk/sereno/client_page.php";
this.window.close();
}
// A utility function that returns true if a string contains only
// whitespace characters.
function isblank(s)
{
for(var i = 0; i < s.length; i++) {
var c = s.charAt(i);
if ((c != ' ') && (c != '\n') && (c != '\t')) return false;
}
return true;
}
// Removes first chars from string
// s = string to remove prefix from, n is no of chars to strip from string
function stripPrefixAndUnderscore(s, n)
{
noRemove = n;
stripped = s.substring(n,s.length);
str = stripped.replace(/_/, " ");
return str;
}
// If there is a form on the page, it's first element is given the focus
// Calling HTML: -
function firstFocus()
{
if (document.forms.length > 0)
{
var TForm = document.forms[0];
for (i=0;i
function checkEnterToSubmit(event, formname)
{
var frm = formname;
var code = 0;
code = event.keyCode;
if (code==13)
submitForm(frm);
}
//
function submitForm(formname){
var frmname = formname;
var frm = "document." + frmname;
if (verify(eval(frm))){
eval(frm).submit();
}
}
// This is the function that performs form verification.
// Checks any text or text area element against pre-defined
// 'optional', 'max' and 'min' properties.
// Doesn't do radio buttons or check boxes.
// NB - 'max' and 'min' refer to NUMERIC values.
// NB - calls stripPrefixAndUnderscore to remove first 3 chars of field name - eg txtSurname -> Surname
function verify(f)
{
var msg;
var empty_fields = "";
var errors = "";
// Loop through the elements of the form, looking for all
// text and textarea elements that don't have an "optional" property
// defined. Then, check for fields that are empty and make a list of them.
// Also, if any of these elements have a "min" or a "max" property defined,
// then verify that they are numbers and that they are in the right range.
// Put together error messages for fields that are wrong.
for(var i = 0; i < f.length; i++) {
var e = f.elements[i];
if (((e.type == "text") || (e.type == "textarea") || (e.type == "password")) && !e.optional) {
// first check if the field is empty
if ((e.value == null) || (e.value == "") || isblank(e.value)) {
empty_fields += "\n " + stripPrefixAndUnderscore(e.name,3);
continue;
}
// Now check for fields that are supposed to be numeric.
if (e.numeric || (e.min != null) || (e.max != null)) {
var v = parseFloat(e.value);
if (isNaN(v) ||
((e.min != null) && (v < e.min)) ||
((e.max != null) && (v > e.max))) {
errors += "- The field " + stripPrefixAndUnderscore(e.name) + " must be a number";
if (e.min != null)
errors += " that is greater than " + e.min;
if (e.max != null && e.min != null)
errors += " and less than " + e.max;
else if (e.max != null)
errors += " that is less than " + e.max;
errors += ".\n";
}
}
}
}
// Now, if there were any errors, display the messages, and
// return false to prevent the form from being submitted.
// Otherwise return true.
if (!empty_fields && !errors) return true;
msg = "______________________________________________________\n\n"
msg += "Your form isn't quite complete yet.\n";
msg += "Please sort out the issues below and try again:\n";
msg += "______________________________________________________\n\n"
if (empty_fields) {
msg += "- The following required field(s) are empty:"
+ empty_fields + "\n";
if (errors) msg += "\n";
}
msg += errors;
alert(msg);
return false;
}
// for development - generate an alert box.
function underDevelopment(){
alert("Currently in development.\nPlease check later.");
}
// rollover a table row and change its colour
// eg of use:
function do_over(obj,colour) {
obj.style.backgroundColor = colour; obj.style.color = 'black'; obj.style.cursor = 'hand'; obj.style.title = 'Ha Ha';
}
function do_out(obj) {
obj.style.backgroundColor = ''; obj.style.color = '';
}
// Macromed
function MM_swapImgRestore() { //v3.0
var i,x,a=document.MM_sr; for(i=0;a&&i0&&parent.frames.length) {
d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i maxlen + 1)
alert('Sorry - you have reached the maximum character length.');
if (field.value.length > maxlen)
field.value = field.value.substring(0, maxlen);
}