var bSubmitted = false; function setSubmitted(value)
{ bSubmitted = value; return; }
function getSubmitted()
{ var bOldValue = bSubmitted; setSubmitted(true); return bOldValue; }


function validateRequiredField(field, errorText)
{   
    if (!field)
        return false;
    if (field==null || field.value==null || field.value=="")
    {
        alert(errorText);  
        field.focus();      
        return false;
    }
    else {return true;}    
} 

function validateEmailField(field, errorText) {

    if (!field)
        return false;
    
    if ((field.value.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) != -1))
       return true;
    else{
        alert(errorText);  
        field.focus();      
        return false;
    }    
}

function formShareValidateSubmit() {    
    var form = document.forms.formShareProduct;    
    if (!form)
        form = document.forms["formShareProduct"];        
   
    if (!validateRequiredField(form.name, "Name is a required a field."))
        return false;
    if (!validateRequiredField(form.email, "Email is required a field."))
        return false;
    if (!validateRequiredField(form.friend_name, "Friend's name is a required field."))
        return false;
    if (!validateRequiredField(form.friends_email, "Friend's email is a required field."))
        return false;
        
    if (!validateEmailField(form.email, "Email doesn't seem to be valid."))
        return false;
    if (!validateEmailField(form.friends_email, "Friend's email doesn't seem to be valid."))
        return false;
    return true;
}

/*************************************************************************
dw_event.js (version date Feb 2004)
        
This code is from Dynamic Web Coding at http://www.dyn-web.com/
See Terms of Use at http://www.dyn-web.com/bus/terms.html
regarding conditions under which you may use this code.
This notice must be retained in the code as is!
*************************************************************************/

var dw_event = {

    add: function(obj, etype, fp, cap) {
        cap = cap || false;
        if (obj.addEventListener) obj.addEventListener(etype, fp, cap);
        else if (obj.attachEvent) obj.attachEvent("on" + etype, fp);
    },

    remove: function(obj, etype, fp, cap) {
        cap = cap || false;
        if (obj.removeEventListener) obj.removeEventListener(etype, fp, cap);
        else if (obj.detachEvent) obj.detachEvent("on" + etype, fp);
    },

    DOMit: function(e) {
        e = e ? e : window.event;
        e.tgt = e.srcElement ? e.srcElement : e.target;

        if (!e.preventDefault) e.preventDefault = function() { return false; }
        if (!e.stopPropagation) e.stopPropagation = function() { if (window.event) window.event.cancelBubble = true; }

        return e;
    }

}

/*************************************************************************

dw_viewport.js
version date Nov 2003
  
This code is from Dynamic Web Coding 
at http://www.dyn-web.com/
Copyright 2003 by Sharon Paine 
See Terms of Use at http://www.dyn-web.com/bus/terms.html
regarding conditions under which you may use this code.
This notice must be retained in the code as is!

*************************************************************************/

var viewport = {
    getWinWidth: function() {
        this.width = 0;
        if (window.innerWidth) this.width = window.innerWidth - 18;
        else if (document.documentElement && document.documentElement.clientWidth)
            this.width = document.documentElement.clientWidth;
        else if (document.body && document.body.clientWidth)
            this.width = document.body.clientWidth;
    },

    getWinHeight: function() {
        this.height = 0;
        if (window.innerHeight) this.height = window.innerHeight - 18;
        else if (document.documentElement && document.documentElement.clientHeight)
            this.height = document.documentElement.clientHeight;
        else if (document.body && document.body.clientHeight)
            this.height = document.body.clientHeight;
    },

    getScrollX: function() {
        this.scrollX = 0;
        if (typeof window.pageXOffset == "number") this.scrollX = window.pageXOffset;
        else if (document.documentElement && document.documentElement.scrollLeft)
            this.scrollX = document.documentElement.scrollLeft;
        else if (document.body && document.body.scrollLeft)
            this.scrollX = document.body.scrollLeft;
        else if (window.scrollX) this.scrollX = window.scrollX;
    },

    getScrollY: function() {
        this.scrollY = 0;
        if (typeof window.pageYOffset == "number") this.scrollY = window.pageYOffset;
        else if (document.documentElement && document.documentElement.scrollTop)
            this.scrollY = document.documentElement.scrollTop;
        else if (document.body && document.body.scrollTop)
            this.scrollY = document.body.scrollTop;
        else if (window.scrollY) this.scrollY = window.scrollY;
    },

    getAll: function() {
        this.getWinWidth(); this.getWinHeight();
        this.getScrollX(); this.getScrollY();
    }

}

/*************************************************************************
dw_tooltip.js   requires: dw_event.js and dw_viewport.js
version date: May 21, 2005 moved init call to body onload
(March 14, 2005: minor changes in position algorithm and timer mechanism)
  
This code is from Dynamic Web Coding at dyn-web.com
Copyright 2003-5 by Sharon Paine 
See Terms of Use at www.dyn-web.com/bus/terms.html
regarding conditions under which you may use this code.
This notice must be retained in the code as is!
*************************************************************************/

var Tooltip = {
    followMouse: true,
    offX: 8,
    offY: 12,
    tipID: "tipDiv",
    showDelay: 100,
    hideDelay: 200,

    ready: false, timer: null, tip: null,

    init: function() {
        if (document.createElement && document.body && typeof document.body.appendChild != "undefined") {
            if (!document.getElementById(this.tipID)) {
                var el = document.createElement("DIV");
                el.id = this.tipID; document.body.appendChild(el);
            }
            this.ready = true;
        }
    },

    show: function(e, msg) {
        if (this.timer) { clearTimeout(this.timer); this.timer = 0; }
        this.tip = document.getElementById(this.tipID);
        if (this.followMouse) // set up mousemove 
            dw_event.add(document, "mousemove", this.trackMouse, true);
        this.writeTip("");  // for mac ie
        this.writeTip(msg);
        viewport.getAll();
        this.positionTip(e);
        this.timer = setTimeout("Tooltip.toggleVis('" + this.tipID + "', 'visible')", this.showDelay);
    },

    writeTip: function(msg) {
        if (this.tip && typeof this.tip.innerHTML != "undefined") this.tip.innerHTML = msg;
    },

    positionTip: function(e) {
        if (this.tip && this.tip.style) {
            // put e.pageX/Y first! (for Safari)
            var x = e.pageX ? e.pageX : e.clientX + viewport.scrollX;
            var y = e.pageY ? e.pageY : e.clientY + viewport.scrollY;

            if (x + this.tip.offsetWidth + this.offX > viewport.width + viewport.scrollX) {
                x = x - this.tip.offsetWidth - this.offX;
                if (x < 0) x = 0;
            } else x = x + this.offX;

            if (y + this.tip.offsetHeight + this.offY > viewport.height + viewport.scrollY) {
                y = y - this.tip.offsetHeight - this.offY;
                if (y < viewport.scrollY) y = viewport.height + viewport.scrollY - this.tip.offsetHeight;
            } else y = y + this.offY;

            this.tip.style.left = x + "px"; this.tip.style.top = y + "px";
        }
    },

    hide: function() {
        if (this.timer) { clearTimeout(this.timer); this.timer = 0; }
        this.timer = setTimeout("Tooltip.toggleVis('" + this.tipID + "', 'hidden')", this.hideDelay);
        if (this.followMouse) // release mousemove
            dw_event.remove(document, "mousemove", this.trackMouse, true);
        this.tip = null;
    },

    toggleVis: function(id, vis) { // to check for el, prevent (rare) errors
        var el = document.getElementById(id);
        if (el) el.style.visibility = vis;
    },

    trackMouse: function(e) {
        e = dw_event.DOMit(e);
        Tooltip.positionTip(e);
    }

}