// JavaScript Document
//Open offsite links in new window script- http://www.dynamicdrive.com/
//Created: August 28th, 2007'

var ddwindowlinks = {
    //1)Enter domains to be EXCLUDED from opening in new window:
    excludedomains: ["clients.mikewarddesign.com", "tracilennon.com", "dentistsummerville.com", "dentistsummervillesc.com"],

    //2) Target for links that should open in a new window (ie: "_blank", "secwin" etc):
    linktarget: "_blank",

    //3) Specify operating mode ("auto" or "manual"):
    mode: "auto",

    //4) If mode is "manual", customize checkbox HTML to show to users (Preserve id attribute):
    toggleHTML: '<form><input type="checkbox" id="targetcheckbox" checked="checked" /><label for="targetcheckbox">Open off-site links in new window?</label></form>',

    //5) If mode is "manual", enable user persistence so the state of the checkbox is remembered?
    persist: true,

    assigntarget: function () {
        var rexcludedomains = new RegExp(this.excludedomains.join("|"), "i")
        var all_links = document.getElementsByTagName("a")
        if (this.mode == "auto" || (this.mode == "manual" && this.togglebox.checked)) {
            for (var i = 0; i <= (all_links.length - 1); i++) {
                if (all_links[i].hostname.search(rexcludedomains) == -1 && all_links[i].href.indexOf("http:") != -1)
                    all_links[i].target = ddwindowlinks.linktarget
            }
        }
        else {
            for (var i = 0; i <= (all_links.length - 1); i++)
                all_links[i].target = ""
        }
        if (this.mode == "manual" && this.persist)
            this.setCookie("dlinktarget", (this.togglebox.checked) ? "yes" : "no", 30) //remember user setting for 30 days (set to -1 then reload page to erase cookie)
    },

    init: function () {
        if (document.getElementById && this.mode == "manual") {
            document.write(this.toggleHTML)
            this.togglebox = document.getElementById("targetcheckbox")
            this.togglebox.onclick = function () { ddwindowlinks.assigntarget() }
            if (this.persist && this.getCookie("dlinktarget") != "")
                this.togglebox.checked = (this.getCookie("dlinktarget") == "yes") ? true : false
        }
        if (window.addEventListener)
            window.addEventListener("load", function () { ddwindowlinks.assigntarget() }, false)
        else if (window.attachEvent)
            window.attachEvent("onload", function () { ddwindowlinks.assigntarget() })
    },

    getCookie: function (Name) {
        var re = new RegExp(Name + "=[^;]+", "i"); //construct RE to search for target name/value pair
        if (document.cookie.match(re)) //if cookie found
            return document.cookie.match(re)[0].split("=")[1] //return its value
        return ""
    },

    setCookie: function (name, value, days) {
        var expireDate = new Date()
        //set "expstring" to either an explicit date (past or future)
        var expstring = expireDate.setDate(expireDate.getDate() + parseInt(days))
        document.cookie = name + "=" + value + "; expires=" + expireDate.toGMTString() + "; path=/"
    }

}

ddwindowlinks.init()