//This is the anonymous function running in its own scope, preventing clashes with other variable names.
(function () {
    var head = document.getElementsByTagName("head")[0];
    if (head) {
	    var scriptStyles = document.createElement("link");
	    scriptStyles.rel = "stylesheet";
	    scriptStyles.type = "text/css";
	    scriptStyles.href = "http://www.popularrestorations.com/js_style.css";
	    head.appendChild(scriptStyles);
    }
}());

function flip(what, divId)
{
 	var e = document.getElementById(divId);

 	if (!e)
 		return true;
 		
 	a = what.innerHTML;
	if (a.indexOf('More') == -1)
	{
		what.innerHTML = "More...";
        e.style.display = "none";
	}
	else
	{
		what.innerHTML = "Less...";
        e.style.display = "block";		
	}
	return true;
}

/***********************************************
* HTML array for Pausing up-down scroller
***********************************************/
var site = 'http://www.popularrestorations.com/';
var imageDir = 'images/Articles/PauseScroller/data/thumbnails/';

function article(link, img, linkText, description) {
    this.link = link;
    this.img = img;
    this.linkText = linkText;
    this.description = description
}

articleObj = new Array();
articleObj[0] = new article('Articles/Article800.htm','per_shop_from_front.png','Engine rebuild tour!','Take an online tour of an engine rebuild shop.');
articleObj[1] = new article('Articles/Article820.htm','ferrari_body_work.png','Resto shop videos!','Watch this four-episode tour of Custom Automotive Restoration.');
articleObj[2] = new article('Articles/Article808.htm','default.png','Car songs and movies!','Recommendations by author Jeff Zurschmeide.');
articleObj[3] = new article('Articles/Article806.htm','bookcovers.png','Car books you should read!','Racing, road trips, car photography, and more.');
articleObj[4] = new article('Articles/Article815.htm','1949_mercury_tailgate.png','Woodie Restoration','5 articles on woodie finishes, preparation, and application.');
articleObj[5] = new article('articles.htm','1940_ford_deluxe_sedan_delivery.png','How to purchase a collector car','13 informative articles and interviews.');
articleObj[6] = new article('Articles/Article060.htm','image_of_top_of_worksheet.png','Estimating costs','How to avoid cost overruns on your next restoration.');
articleObj[7] = new article('articles.htm','packard_on_trailer.png','Cleaning, painting and plating','8 articles on finishing your collector car.');
articleObj[8] = new article('articles.htm','four_barrel.png','Repairing & rebuilding','34 articles on repairing and rebuilding--from suspension to wipers.');
articleObj[9] = new article('articles.htm','default_polishing_car.png','Assembling and maintaining','7 articles from fasteners to detailing to storage.');
articleObj[10] = new article('1946%20Packard%20Time.aspx','time.png','Where the time went','An hour-by-hour chart for the Popular Restorations project car.');
articleObj[11] = new article('1946%20Packard%20Expenses.aspx','money.png','Where the money went','A dollar-by dollar chart for the Popular Restorations project car.');

var pausecontent = new Array()
var i = 0;
var j;

for(i = 0; i < articleObj.length; i++)
{
    j = Math.floor(articleObj.length * Math.random());
    while (articleObj[j].link == 'used')
    {
        if (++j == articleObj.length)
            j = 0;
    }
    
    pausecontent[i]='<a href="' + site + articleObj[j].link + '">' + articleObj[j].linkText + '</a><br /><br />' + articleObj[j].description +
        '<br /><br /><a href="' + site + articleObj[j].link + '"><img src="' + site + imageDir + articleObj[j].img +  '" /></a>';
    articleObj[j].link = 'used';
}

/***********************************************
* Pausing up-down scroller- © Dynamic Drive (www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit http://www.dynamicdrive.com/ for this script and 100s more.
***********************************************/
function pausescroller(content, divId, divClass, delay){

this.content=content //message array content
this.tickerid=divId //ID of ticker div to display information
this.delay=delay //Delay between msg change, in miliseconds.
this.mouseoverBol=0 //Boolean to indicate whether mouse is currently over scroller (and pause it if it is)
this.hiddendivpointer=1 //index of message array for hidden div
document.write('<div id="'+divId+'" class="'+divClass+'" style="position: relative; overflow: hidden"><div class="innerDiv" style="position: absolute; width: 100%" id="'+divId+'1">'+content[0]+'</div><div class="innerDiv" style="position: absolute; width: 100%; visibility: hidden" id="'+divId+'2">'+content[1]+'</div></div>')
var scrollerinstance=this
if (window.addEventListener) //run onload in DOM2 browsers
window.addEventListener("load", function(){scrollerinstance.initialize()}, false)
else if (window.attachEvent) //run onload in IE5.5+
window.attachEvent("onload", function(){scrollerinstance.initialize()})
else if (document.getElementById) //if legacy DOM browsers, just start scroller after 0.5 sec
setTimeout(function(){scrollerinstance.initialize()}, 500)
}

// -------------------------------------------------------------------
// initialize()- Initialize scroller method.
// -Get div objects, set initial positions, start up down animation
// -------------------------------------------------------------------
pausescroller.prototype.initialize=function(){
this.tickerdiv=document.getElementById(this.tickerid)
this.visiblediv=document.getElementById(this.tickerid+"1")
this.hiddendiv=document.getElementById(this.tickerid+"2")
this.visibledivtop=parseInt(pausescroller.getCSSpadding(this.tickerdiv))
//set width of inner DIVs to outer DIV's width minus padding (padding assumed to be top padding x 2)
this.visiblediv.style.width=this.hiddendiv.style.width=this.tickerdiv.offsetWidth-(this.visibledivtop*2)+"px"
this.getinline(this.visiblediv, this.hiddendiv)
this.hiddendiv.style.visibility="visible"
var scrollerinstance=this
document.getElementById(this.tickerid).onmouseover=function(){scrollerinstance.mouseoverBol=1}
document.getElementById(this.tickerid).onmouseout=function(){scrollerinstance.mouseoverBol=0}
if (window.attachEvent) //Clean up loose references in IE
window.attachEvent("onunload", function(){scrollerinstance.tickerdiv.onmouseover=scrollerinstance.tickerdiv.onmouseout=null})
setTimeout(function(){scrollerinstance.animateup()}, this.delay)
}

// -------------------------------------------------------------------
// animateup()- Move the two inner divs of the scroller up and in sync
// -------------------------------------------------------------------
pausescroller.prototype.animateup=function(){
var scrollerinstance=this
if (parseInt(this.hiddendiv.style.top)>(this.visibledivtop+5)){
this.visiblediv.style.top=parseInt(this.visiblediv.style.top)-5+"px"
this.hiddendiv.style.top=parseInt(this.hiddendiv.style.top)-5+"px"
setTimeout(function(){scrollerinstance.animateup()}, 50)
}
else{
this.getinline(this.hiddendiv, this.visiblediv)
this.swapdivs()
setTimeout(function(){scrollerinstance.setmessage()}, this.delay)
}
}

// -------------------------------------------------------------------
// swapdivs()- Swap between which is the visible and which is the hidden div
// -------------------------------------------------------------------
pausescroller.prototype.swapdivs=function(){
var tempcontainer=this.visiblediv
this.visiblediv=this.hiddendiv
this.hiddendiv=tempcontainer
}

pausescroller.prototype.getinline=function(div1, div2){
div1.style.top=this.visibledivtop+"px"
div2.style.top=Math.max(div1.parentNode.offsetHeight, div1.offsetHeight)+"px"
}

// -------------------------------------------------------------------
// setmessage()- Populate the hidden div with the next message before it's visible
// -------------------------------------------------------------------
pausescroller.prototype.setmessage=function(){
var scrollerinstance=this
if (this.mouseoverBol==1) //if mouse is currently over scoller, do nothing (pause it)
setTimeout(function(){scrollerinstance.setmessage()}, 100)
else{
var i=this.hiddendivpointer
var ceiling=this.content.length
this.hiddendivpointer=(i+1>ceiling-1)? 0 : i+1
this.hiddendiv.innerHTML=this.content[this.hiddendivpointer]
this.animateup()
}
}

pausescroller.getCSSpadding=function(tickerobj){ //get CSS padding value, if any
if (tickerobj.currentStyle)
return tickerobj.currentStyle["paddingTop"]
else if (window.getComputedStyle) //if DOM2
return window.getComputedStyle(tickerobj, "").getPropertyValue("padding-top")
else
return 0
}

function pageLoadFunction()
{
    // If the URL specifies a location on the page then jump to it
    // The substring(1) removes the #
    //  	var loc = unescape(self.document.location.hash.substring(1));
    //	if (loc)
    //		location.hash = loc;
}
window.onload = pageLoadFunction;

