﻿/***********************************************
* 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; width: 380px;"><div class="newsscrolltxt" style="" id="' + divId + '1">' + content[0] + '</div><div class="newsscrolltxt" style="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 })
    //alert('<%= isScroll%>')
    if ('<%= isScroll.ToString().ToLower()%>' == 'true') 
    {
    //alert('<%= isScroll%>')
        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
}

