// JavaScript Document
//pre load images for rollovers not covered by navigation.inc.php
image0 = new Image();
image0.src = "images/nav_subscribe-over.gif";
viewFavourites = new Image();
viewFavourites.src = "images/nav_viewfav-over.gif";
//function for rollovers
function swapImg(obj) {
var srcArray = obj.src.split("nav_");
var srcFileArray = srcArray[1].split(".");
if(srcArray[1].indexOf("over") ==-1) {
obj.src = "images/nav_" + srcFileArray[0] + "-over.gif";
}
else {
var srcFileArrayOver = srcFileArray[0].split("-");
obj.src = "images/nav_" + srcFileArrayOver[0] + ".gif";
}
}
// FORM VALIDATION 
// validates that the field value string has one or more characters in it
function focusElement(formName, elemName) {
    var elem = document.forms[formName].elements[elemName];
    elem.focus();
    elem.select();
}
function isNotEmpty(elem) {
	var str = elem.value;
	var fieldname = elem.id;
    var re = /.+/;
    if(!str.match(re)) {
        alert("Please fill in the " + fieldname + " field.");
        setTimeout("focusElement('" + elem.form.name + "', '" + elem.name + "')", 0);
        return false;
    } else {
        return true;
    }
}
function isNotAdded(elem) {
	var str = elem.value;
	var fieldname = elem.id;
    var re = /.+/;
    if(!str.match(re)) {
        alert("Please include at least one Photo.");
        setTimeout("focusElement('" + elem.form.name + "', '" + elem.name + "')", 0);
        return false;
    } else {
        return true;
    }
}

//validates that the entry is a positive or negative number
function isNumber(elem) {
	var str = elem.value;
    var re = /^[-]?\d*\.?\d*$/;
    str = str.toString();
    if (!str.match(re)) {
        alert("Please enter only numbers into the " + elem.id +" field (without spaces).");
        setTimeout("focusElement('" + elem.form.name + "', '" + elem.name + "')", 0);
        return false;
    }
    return true;
}
// validates that the entry is 16 characters long
function isLen16(elem) {
	var str = elem.value;
    var re = /\b.{16}\b/;
    if (!str.match(re)) {
        alert("Entry does not contain the required 16 characters.");
        setTimeout("focusElement('" + elem.form.name + "', '" + elem.name + "')", 0);
        return false;
    } else {
        return true;
    }
}
// validates that the entry is formatted as an e-mail address
function isEMailAddr(elem) {
	var str = elem.value;
    var re = /^[\w-]+(\.[\w-]+)*@([\w-]+\.)+[a-zA-Z]{2,7}$/;
    if (!str.match(re)) {
        alert("Please enter a valid email address.");
        setTimeout("focusElement('" + elem.form.name + "', '" + elem.name + "')", 0);
        return false;
    } else {
        return true;
    }
}
// validate that the user made a selection other than default
function isChosen(select) {
	var fieldname = select.id;
    if (select.selectedIndex == 0) {
        alert("Please make a choice from the '" +fieldname+ "' list.");
        return false;
    } else {
        return true;
    }
}

// validate that the user has checked one of the radio buttons
function isValidRadio(radio) {
    var valid = false;
    for (var i = 0; i < radio.length; i++) {
		var fieldname = radio[i].id;
        if (radio[i].checked) {
            return true;
        }
    }
	
    alert("Make a choice for " + fieldname + ".");
    return false;
}
var myWindow;
function openCenteredWindow(url) {
	var width = 600;
	var height = 660;
	var left = parseInt((screen.availWidth/2)-(width/2));
	var top = parseInt((screen.availHeight/2) -(height/2));
	var windowFeatures = "width=" + width + ",height=" + height + ",status,resizable,left=" + left + ",top=" + top + ",screenX=" + left + ",screenY=" +top;
	myWindow = window.open(url,"subWind",windowFeatures);
}
var favWindow;
function openFav(param) {
	var url = "favourites.php?PHPSESSID=gsfjqmcbfatntnmnqoqm7pmka0&pid="+param;
	var width = 430;
	var height = 600;
	var left = parseInt((screen.availWidth/2)-(width/2));
	var top = parseInt((screen.availHeight/2) -(height/2));
	var windowFeatures = "width=" + width + ",height=" + height + ",status,scrollbars,resizable,left=" + left + ",top=" + top + ",screenX=" + left + ",screenY=" +top;
	favWindow = window.open(url,"Favourites",windowFeatures);
}
function openFavTB() {
	var url = "favourites.php?PHPSESSID=gsfjqmcbfatntnmnqoqm7pmka0";
	var width = 430;
	var height = 600;
	var left = parseInt((screen.availWidth/2)-(width/2));
	var top = parseInt((screen.availHeight/2) -(height/2));
	var windowFeatures = "width=" + width + ",height=" + height + ",status,scrollbars,resizable,left=" + left + ",top=" + top + ",screenX=" + left + ",screenY=" +top;
	favWindow = window.open(url,"Favourites",windowFeatures);
}
function closeandfocus(location) {
if (window.opener && !window.opener.closed) {
window.close();
window.opener.document.getElementById("favview").style.display="block";
window.opener.focus();
}
else
{
window.close();
}
}
function stockistrequest() {
	window.close();
	window.opener.location.href = "contact.php?cid=32&sr=Y";
    window.opener.focus();
}
function stockistsearch() {
	window.close();
    window.opener.location.href = "stockists.php?cid=31";
    window.opener.focus();
}