//Document Text Resizer script (May 14th, 08'): By JavaScript Kit: http://www.javascriptkit.com

var documenttextsizer = {

    prevcontrol: '', //remember last control clicked on/ selected
    existingclasses: '',

    setpageclass: function(control, newclass) {
        if (this.prevcontrol != '')
            this.css(this.prevcontrol, 'selectedtoggler', 'remove') //de-select previous control, by removing 'selectedtoggler' from it
        //document.documentElement.className = this.existingclasses + ' ' + newclass //apply new class to document
        document.getElementById("MPdvContentContainer").className = "MPdvContentContainer " + newclass;
        this.css(control, 'selectedtoggler', 'add') //select current control
        this.setCookie('pagesetting', newclass, 5) //remember new class added to document for 5 days
        this.prevcontrol = control
    },

    css: function(el, targetclass, action) {

        var needle = new RegExp("(^|\\s+)" + targetclass + "($|\\s+)", "ig")
        if (action == "check")
            return needle.test(el.className)
        else if (action == "remove")
            el.className = el.className.replace(needle, "")
        else if (action == "add")
            el.className += " " + targetclass
    },

    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 null
    },

    setCookie: function(name, value, days) {
        if (typeof days != "undefined") { //if set persistent cookie
            var expireDate = new Date()
            var expstring = expireDate.setDate(expireDate.getDate() + days)
            document.cookie = name + "=" + value + "; path=/; expires=" + expireDate.toGMTString()
        }
        else //else if this is a session only cookie
            document.cookie = name + "=" + value
    },

    setup: function(targetclass) {
        this.existingclasses = document.documentElement.className //store existing CSS classes on HTML element, if any
        var persistedsetting = this.getCookie('pagesetting')
        if (persistedsetting == null) persistedsetting = 'normalview';
        var alllinks = document.getElementsByTagName("a")
        for (var i = 0; i < alllinks.length; i++) {
            if (this.css(alllinks[i], targetclass, "check")) {
                if (alllinks[i].getAttribute("rel") == persistedsetting) //if this control's rel attribute matches persisted doc CSS class name
                    this.setpageclass(alllinks[i], alllinks[i].getAttribute("rel")) //apply persisted class to document
                alllinks[i].onclick = function() {
                    documenttextsizer.setpageclass(this, this.getAttribute("rel"))
                    return false
                }
            }
        }
    }

}