var pageHeight;

// general
function addEvent(obj, evType, fn) {
    if (obj.addEventListener) { obj.addEventListener(evType, fn, false); return true; }
    else if (obj.attachEvent) { var r = obj.attachEvent("on" + evType, fn); return r; }
    else return false;
}


function externalLinks() {
    if (!document.getElementsByTagName) return;
    var anchors = document.getElementsByTagName("a");
    for (var i = 0; i < anchors.length; i++) {
        var anchor = anchors[i];
        if (anchor.getAttribute("href") && anchor.getAttribute("rel") == "external") anchor.target = "_blank";
    }
}
function genEmail(user, domain, suffix, text) {
    mailto = user + '@' + domain + '.' + suffix;
    text = (text) ? text : mailto;
    document.write('<a href="mailto:' + mailto + '">' + text + '</a>');
}
function innerHTML(obj, val) { document.getElementById(obj).innerHTML = val; }
function loadURL(target, newwin) { if (newwin) window.open(target, ''); else document.location.href = target; }
function txtCt(obj, maxlimit) { if (obj.value.length > maxlimit) obj.value = obj.value.substring(0, maxlimit); }
function showObj(obj) { if (document.getElementById(obj)) document.getElementById(obj).style.display = 'block'; }
function hideObj(obj) { if (document.getElementById(obj)) document.getElementById(obj).style.display = 'none'; }
function newWin(url, id, w, h, tb, st, sb, re) {
    var x = screen.availWidth / 2 - w / 2;
    var y = screen.availHeight / 2 - h / 2;
    var newWin = window.open(url, id, 'width=' + w + ',height=' + h + ',left=' + ((x > 0) ? x : 0) + ',top=' + ((y > 0) ? y : 0) + ',toolbar=' + (tb ? tb : 'no') + ',status=' + (st ? st : 'no') + ',scrollbars=' + (sb ? sb : 'no') + ',resizable=' + (re ? re : 'no') + '');
    newWin.focus();
}
function getQueryVariable(variable) {
    var query = window.location.search.substring(1);
    var vars = query.split("&");
    for (var i = 0; i < vars.length; i++) {
        var pair = vars[i].split("=");
        if (pair[0] == variable) return pair[1];
    }
    return null;
}

function createCookie(name, value, days) {
    if (days) { var date = new Date(); date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000)); var expires = "; expires=" + date.toGMTString(); }
    else var expires = "";
    document.cookie = name + "=" + value + expires + "; path=/";
}
function readCookie(name) {
    var nameEQ = name + "="; var ca = document.cookie.split(';');
    for (var i = 0; i < ca.length; i++) {
        var c = ca[i];
        while (c.charAt(0) == ' ') c = c.substring(1, c.length);
        if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length);
    }
    return null;
}
function eraseCookie(name) { createCookie(name, "", -1); }

function fixPNG(obj) {
    if (browser.is_ie && !browser.is_ie7up && obj.src.indexOf('.png') != -1) {
        var imgID = (obj.id) ? "id='" + obj.id + "' " : "";
        var imgClass = (obj.className) ? "class='" + obj.className + "' " : "";
        var imgAlt = "alt='" + obj.alt.replace(/'/g, '&#39;') + "' ";
        var imgTitle = (obj.title) ? "title='" + obj.title.replace(/'/g, '&#39;') + "' " : "";
        var imgStyle = "display:inline-block;" + obj.style.cssText;
        var strNewHTML = "<span " + imgID + imgClass + imgTitle
		+ " style=\"" + "width:" + obj.width + "px; height:" + obj.height + "px;" + imgStyle + ";"
		+ "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
		+ "(src=\'" + obj.src + "\', sizingMethod='crop');\"></span>";
        obj.outerHTML = strNewHTML;
    }
}
function fixPNGimgs() {
    if (!document.getElementsByTagName) return;
    var imgs = document.getElementsByTagName("img");
    for (var i = 0; i < imgs.length; i++) { var img = imgs[i]; if (img.getAttribute("rel") == "png") fixPNG(img); }
}

addEvent(window, 'load', externalLinks);
addEvent(window, 'load', fixPNGimgs);

/**************************************************
Expands and/or Collapses the divs in the right 
content area on the Contact us page.
**************************************************/
function showHideContent(id) {
    var elem = document.getElementById(id);
    if (elem) {
        // Collapse Current Div
        if (document.getElementById(id).style.display == 'block') {
            document.getElementById(id + 'img').src = '../images/contact/arrow.gif';
            elem.style.display = 'none';
        }
        // Expand New Div
        else {
            // collapse all expandable divs
            for (i = 1; i <= 5; i++) {
                document.getElementById('collapse' + i + 'img').src = '../images/contact/arrow.gif';
                document.getElementById('collapse' + i).style.display = 'none';
            }
            // expand the desired div
            document.getElementById(id + 'img').src = '../images/contact/arrow_expanded.gif';
            elem.style.display = 'block';
        }
    }
}

/**************************************************
Get the Y position of the supplied object
**************************************************/
function getY(object) {
    var y = 0;
    while (object != null) {
        y = y + object.offsetTop;
        object = object.offsetParent;
    }
    return y;
}

/**************************************************
Get the X position of the supplied object
**************************************************/
function getX(object) {
    var x = 0;
    while (object != null) {
        x = x + object.offsetLeft;
        object = object.offsetParent;
    }
    return x;
}

/**************************************************
This function finds the window height that is
currently visible.
**************************************************/
function getVisibleHeight() {
    var height = 0;

    /* Internet Explorer */
    if (document.documentElement.clientHeight && document.documentElement) {
        height = document.documentElement.clientHeight;
    }

    /* Non Internet-Explorer Browsers - Safari, Firefox, Opera, Chrome */
    else if (typeof (window.innerHeight) == 'number') {
        height = window.innerHeight;
    }

    /* If no match occurs, set a value anyway (shouldn't happen , here as a precaution) */
    else {
        height = 2000;
    }

    return height;
}

/**************************************************
This function finds the window height based on the 
current scrolled position
**************************************************/
function findHeight() {
    var fade = document.getElementById('fade');
    var visibleHeight = getVisibleHeight();

    var body = document.body;
    var doc = document.documentElement;

    var elements = doc.offsetHeight ? body : doc;
    var contentHeight = Math.max(elements.scrollHeight, elements.offsetHeight) + 150;

    /* Compare the content height with the visible height, if the
    visible height is greater than the content height, use that value. */
    if (contentHeight < visibleHeight) {
        fade.style.height = visibleHeight + 'px';
    } else {
        fade.style.height = contentHeight + 'px';
    }
}

/**************************************************
This function toggles on the map modal popup on 
the Marketers/Distributors Results Page.
**************************************************/
var initialized = false;

function openMap(street, city, state, zip, link) {

    /* Variables */
    var modal = document.getElementById('modal');
    var fade = document.getElementById('fade');

    /* Get Total Height Including Scroll */
    findHeight();

    /* Create an iframe if one already isn't present */
    if (initialized == false) {
        modal.innerHTML = '<div style="position:relative"><iframe id="mapframe" src="map/blank.htm" class="map" frameborder="0" border="0" style="position:relative;"></iframe></div>';
        initialized = true;
    }
    var iframe = document.getElementById('mapframe');

    /* Turn on and Position container div */
    var g = getY(link) - 90;
    var h = getX(link) + 20;

    fade.style.display = 'block';

    modal.style.display = 'block';
    modal.style.top = g + 'px';
    modal.style.left = h + 'px';

    /* Populate the iframe with the current map */
    var url = 'map/map.htm?street=' + street + '&city=' + city + '&state=' + state + '&zip=' + zip;
    iframe.src = url;

}

/**************************************************
This function toggles off the map modal popup on 
the Marketers/Distributors Results Page.
**************************************************/
function closeMap() {
    var modal = document.getElementById('modal');
    var fade = document.getElementById('fade');
    modal.style.display = 'none';
    fade.style.display = 'none';
}

/**************************************************
This function toggles table row colors from gray to
white. This is used on the Brands/Products Pages for
the TDS sheet tables
**************************************************/

function setRowColors(id) {
    if (document.getElementsByTagName) {
        var table = document.getElementById(id);
        var rows = table.getElementsByTagName("tr");
        for (i = 0; i < rows.length; i++) {
            if (i % 2 == 0) {
                rows[i].className = "product_listing_tr_gray";
            } else {
                rows[i].className = "product_listing_tr_white";
            }
        }
    }
}

/**************************************************
This function returns the number of TDS results found. 
This is used on the Brands/Products Pages for
the TDS sheet tables
**************************************************/

function getReportNumbers(numTables) {
    var count = 0;
    for (i = 1; i <= numTables; i++) {
        if (document.getElementsByTagName) {
            var tableID = 'Table' + i;
            var table = document.getElementById("Table" + i);
            var rows = table.getElementsByTagName("tr");
            count = count + rows.length;
        }
    }
    document.getElementById("numbers").innerHTML = count;

}

/**************************************************
This function helps a user figure out how to save
the page as a bookmark.
**************************************************/

function bookmark() {
    var url = window.document.location;
    var title = document.title;
    if ((BrowserDetect.browser == "Safari") && (BrowserDetect.OS == "Mac")) {
        alert("Press APPLE-D to save a bookmark of this page in Safari.)");
    } else if ((BrowserDetect.browser == "Safari") && (BrowserDetect.OS == "Windows")) {
        alert("Press CTRL-D to save a bookmark of this page in Safari.");
    } else if ((BrowserDetect.browser == "Explorer") && (BrowserDetect.OS == "Windows")) {
        window.external.AddFavorite(url, title);
    } else if ((BrowserDetect.browser == "Opera") && (BrowserDetect.OS == "Windows")) {
        alert("Press CTRL-T to save a bookmark of this page in Opera.");
    } else if ((BrowserDetect.browser == "Opera") && (BrowserDetect.OS == "Mac")) {
        alert("Press APPLE-T to save a bookmark of this page in Opera.");
    } else if ((BrowserDetect.browser == "Firefox") && (BrowserDetect.OS == "Mac")) {
        alert("Press APPLE-D to save a bookmark of this page in Firefox.");
    } else if ((BrowserDetect.browser == "Firefox") && (BrowserDetect.OS == "Windows")) {
        alert("Press CTRL-D to save a bookmark of this page in Firefox.");
    } else if ((BrowserDetect.browser == "Chrome") && (BrowserDetect.OS == "Windows")) {
        alert("Press CTRL-D to save a bookmark of this page in Chrome.");
    } else {
        alert("Press CTRL-D to save a bookmark of this page.");
    }
}

/**************************************************
This function clears the default text out of the 
about search box when clicked.
**************************************************/

function clearAboutSearchBox(myField) {
    if (myField.value == "Enter search term") {
        myField.value = "";
    }
}