﻿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

    var IlanContent = '<div id="' + divId + '" class="' + divClass + '" style="position: relative; overflow: hidden">';
    var IlanContent1 = '<div class="innerDiv" style="position: absolute; width: 100%" id="' + divId +'1">';
    var IlanContent2 = '<div class="innerDiv" style="position: absolute; width: 100%; visibility: hidden" id="' + divId + '2">';
    for(var i = 0; i < content.length; i++)
    {
    	var mod4 = i%4;
    	if(mod4 == '0' || mod4 == '1')
    	{
    		if(mod4 == '1'){IlanContent1 += '<br>';}
    		IlanContent1 += content[i];
    	}
    	else if (mod4 == '2' || mod4 == '3')
    	{
    		if(mod4 == '3'){IlanContent2 += '<br>';}
   			IlanContent2 += content[i];
    	}
    }

    IlanContent1 += '</div>';
    IlanContent2 += '</div>'    
    IlanContent += IlanContent1 + IlanContent2;
    IlanContent += '</div>';
    document.write(IlanContent);

    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];
        
        if(this.content.length > (Number(this.hiddendivpointer) + 1))//isNaN(this.content[Number(this.hiddendivpointer) + 1])
        {
	        this.hiddendiv.innerHTML += "<br/>" + this.content[Number(this.hiddendivpointer) + 1];
        } 
        
        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
}



//******** Simternet *****//

function createXmlDocument(className,xmlString, nameSpace, rootElement) {
    var xmlDoc = null;
    if (window.ActiveXObject) //Internet Explorer
    {
        xmlDoc = new ActiveXObject(className);
        xmlDoc.async=false;
        xmlDoc.loadXML(xmlString);
                
    }
    else if (document.implementation && document.implementation.createDocument) 
    {
       	var parser = new DOMParser();
		xmlDoc = parser.parseFromString(xmlString, "text/xml");    
	}

    return xmlDoc;
    
    
}
//******** Simternet *****//


