//
// common.js
//
// Author: Colin Jaggs
// Date: 6th October 2004
// Description: Common JS functions use throughout the site
// common variables
var popUpWin = false;
// close any existing popup windows
function closePopups()
{
if (popUpWin) popUpWin.close();
}
// only allow numbers to be entered in text boxes (usage: onKeyPress="return numberOnly()")
function numbersOnly(e)
{
var keycode;
if (window.event) keycode = window.event.keyCode;
else if (e) keycode = e.which;
else return true;
if ((keycode == 13) || ((keycode >= 48) && (keycode <= 57))) { return true; }
else return false;
}
function popUpPage(url)
{
if (popUpWin.open) popUpWin.close();
popUpWin = window.open(url, "popupwin", "width=650,height=500,scrollbars=1,toolbar=1")
}
// generic popup image function - opens a set width and height and displays the image as passed in through imagePath at the full width and height specified
function popUpImage(imagePath, width, height, windowTitle, scroll)
{
windowTitle = windowTitle || "Walton Garden Buildings";
closePopups();
popUpWin = window.open("", "popupwin", "width=" + width + ",height=" + height + ",left=" +( (screen.width / 2) - (width / 2)) + ",top=" + ((screen.height / 2) - (height / 2)) + ",scrollbars=" + ((scroll) ? 1 : 0));
popUpWin.document.open();
popUpWin.document.write("" + windowTitle + "");
popUpWin.document.close();
}
function printerFriendly(url)
{
if (popUpWin.open) popUpWin.close();
popUpWin = window.open(url, "popupwin", "width=650,height=500,scrollbars=1,toolbar=1")
}
function asCurrency(value) // format a number as currency
{
// check the number is a valid number or return empty string
value = parseFloat(value);
if (isNaN(value)) return 0;
// convert to string and check for a decimal place - if there isn't one then append .00 to the value
if (value.toString().indexOf(".") < 1) value = value.toString() + ".00";
// split in to xxx and xx, and format the xx part
var poundsPence = value.toString().split(".");
while (poundsPence[1].length < 2) poundsPence[1] += "0";
return poundsPence[0] + "." + poundsPence[1];
}
function quickSearchHdrKeyPress(e)
{
if (getKeyCode(e) == 13) { quickSearch(document.forms[0].txtSearch); return false; }
return true;
}
function quickSearchFtrKeyPress(e)
{
if (getKeyCode(e) == 13) { quickSearch(document.forms[0].txtSearchFtr); return false; }
return true;
}
function newsletterKeyPress(e)
{
if (getKeyCode(e) == 13) { joinNewsletter(document.forms[0].txtNewsletter); return false; }
return true;
}
function getKeyCode(e)
{
var keycode;
if (window.event) keycode = window.event.keyCode;
else if (e) keycode = e.which;
else return true;
return keycode;
}
function quickSearch(source)
{
var url = HTTPHost + "/product-list";
if ((source.value != "") && (source.value != "Enter Keyword")) url += "&Text=" + source.value;
location.href = url;
}
function joinNewsletter(source)
{
if ((source.value == "") || (source.value == 'Enter Email'))
{
alert("Please enter your email address to subscribe to our newsletter");
return false;
}
location.href = HTTPHost + '/mailing-list&Email=' + source.value;
}
// cross browser function to find an element by id
function objectById(id)
{
if (document.getElementById) return document.getElementById(id);
else if (document.all) return document.all[id];
else if (document.layers) return document.layers[id];
}