/**********************************************************************************
NewsSlideFade
*	Copyright (C) 2001 Thomas Brattli
*	This script was released at DHTMLCentral.com Visit for more great scripts!
*	This may be used and changed freely as long as this msg is intact!
*	We will also appreciate any links you could give us.
*
*	Made by Thomas Brattli
*
*	Script date: 09/04/2001 (keep this date to check versions)
**
** Customizations by Dennis Sunde:
** MOD01: Change target to '_self' in b_newsWrite() to make links stay in the same frame
** MOD02: Change 'link' to LINK_ELEMENT
** MOD03: Change 'text' to TEXT_ELEMENT
** 	These two changes allow me to put the news in a much more concise format:
**		nNews=new Array(
**			['Title1', 'link1'],
**			['Title2', 'link2'],
**			['Title3', 'link3']
**		);
** MOD04: Added firstStory to function fadeInit() so that it starts on a random story each time
**	the page is loaded instead of always starting on the first story
** MOD05: Removed function lib_bwcheck() because a newer version in already on the page for CM4
** MODO6: Allow it to fail gracefully in Opera by using the last color, having default content and not sliding
*********************************************************************************/
/* MOD05
function lib_bwcheck(){ //Browsercheck (needed)
	this.ver=navigator.appVersion
	this.agent=navigator.userAgent
	this.dom=document.getElementById?1:0
	this.opera5=(navigator.userAgent.indexOf("Opera")>-1 && document.getElementById)?1:0
	this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom && !this.opera5)?1:0;
	this.ie6=(this.ver.indexOf("MSIE 6")>-1 && this.dom && !this.opera5)?1:0;
	this.ie4=(document.all && !this.dom && !this.opera5)?1:0;
	this.ie=this.ie4||this.ie5||this.ie6
	this.mac=this.agent.indexOf("Mac")>-1
	this.ns6=(this.dom && parseInt(this.ver) >= 5) ?1:0;
	this.ns4=(document.layers && !this.dom)?1:0;
	this.bw=(this.ie6 || this.ie5 || this.ie4 || this.ns4 || this.ns6 || this.opera5)
	return this
}
var bw=lib_bwcheck()
*/
/***************************************************************************
Use the style tag to change the placement and width of the layers.
If you are trying to place this into a table cell or something make the
position of the NewsCont layer relative...Remeber that that might crash
Netscape 4 though, Good luck!
********************************************************************************/

/****
Variables to set
****/
var LINK_ELEMENT = 1		// MOD02
var TEXT_ELEMENT = 0		// MOD03

//How do you want the script to work?
//0 = Fade in - Fade out
//1 = Slide in - Fade out
//2 = Random
nWorks = 1

//If you use the slide set these variables:
nSlidespeed = 2			//in px
nNewsheight = 80		//This is how long down it should start the slide.

nBetweendelay = 2000	//The delay before fading out.
nFont = 'Arial,Helvetiva'	//The font for the news.
nFontsize = 12			//Font size in pixel.
nFadespeed = 200		//The speed to fade in, in milliseconds.

//Set the colors, first color is same as background, last color is the color it stops at:
//You can have as many colors you want
/*
nColor=new Array('#CCCCCC','#999999','#666666','#333333','#000000')
nColor=new Array('#CCCCCC','#BBBBBB','#AAAAAA','#999999','#888888','#777777','#666666','#555555','#444444','#333333','#222222','#111111','#000000')
*/
nColor=new Array('#CCCCCC','#AAAAAA','#888888','#666666','#444444','#222222','#000000')

/********************************************************************************
Object code...Object constructors and functions...
********************************************************************************/
function makeNewsObj(obj,nest,font,size,color,news,fadespeed,betweendelay,slidespeed,works,newsheight){
	nest=(!nest) ? "":'document.'+nest+'.'
	this.css=bw.dom? document.getElementById(obj).style:bw.ie4?document.all[obj].style:bw.ns4?eval(nest+"document.layers." +obj):0;
	this.writeref=bw.dom? document.getElementById(obj):bw.ie4?document.all[obj]:bw.ns4?eval(nest+"document.layers." +obj+".document"):0;
	if(font){this.color=new Array(); this.color=eval(color); this.news=new Array(); this.news=eval(news)
		this.font=font; this.size=size; this.speed=fadespeed; this.delay=betweendelay; this.newsheight=newsheight;
		this.fadeIn=b_fadeIn;this.fadeOut=b_fadeOut; this.newsWrite=b_newsWrite; this.y=1
		this.slideIn=b_slideIn; this.moveIt=b_moveIt; this.slideSpeed=slidespeed; this.works=works
		//if(bw.dom || bw.ie4){this.css.fontFamily=this.font; this.css.fontSize=this.size; this.css.color=this.color[0]} /* MOD06 */
		if(bw.dom || bw.ie4){this.css.fontFamily=this.font; this.css.fontSize=this.size; this.css.color=this.color[this.color.length-1]}
	}
	this.obj = obj + "Object"; 	eval(this.obj + "=this"); return this
}

// A unit of measure that will be added when setting the position of a layer.
var px = bw.ns4||window.opera?"":"px";

function b_moveIt(x,y){this.x=x; this.y=y; this.css.left=this.x+px; this.css.top=this.y+px;}

function b_newsWrite(num,i){
/* MOD01: Change target to '_self' */
/* MOD02: Change 'link' to LINK_ELEMENT */
/* MOD03: Change 'text' to TEXT_ELEMENT */
	if (bw.ns4){
		this.writeref.write("<a href=\""+this.news[num][LINK_ELEMENT]+"\" target=\"_self\" style=\"text-decoration:none; font-size:"+this.size+"px\">"
			+"<font face=\""+this.font+"\" color=\""+this.color[i]+"\">"+this.news[num][TEXT_ELEMENT]+"</font></a>")
		this.writeref.close()
	}else
	this.writeref.innerHTML = '<a id="'+this.obj+'link' +'" target="_self" style="text-decoration:none; font-size:'+this.size+'px; color:'+this.color[i]+'" href="'+this.news[num][LINK_ELEMENT]+'">'+this.news[num][TEXT_ELEMENT]+'</a>'
}
//Slide in
function b_slideIn(num,i){
	if (this.y>0){
		if (i==0){this.moveIt(0,this.newsheight); this.newsWrite(num,this.color.length-1)}
		this.moveIt(this.x,this.y-this.slideSpeed)
		i ++
		setTimeout(this.obj+".slideIn("+num+","+i+");",50)
	}else setTimeout(this.obj+".fadeOut("+num+","+(this.color.length-1)+")",this.delay)
}
//The fade functions
function b_fadeIn(num,i){
	if (i<this.color.length){
		if (i==0 || bw.ns4) this.newsWrite(num,i)
		else{
			obj = bw.ie4?eval(this.obj+"link"):document.getElementById(this.obj+"link")
			obj.style.color = this.color[i]
		}
		i ++
		setTimeout(this.obj+".fadeIn("+num+","+i+")",this.speed)
	}else setTimeout(this.obj+".fadeOut("+num+","+(this.color.length-1)+")",this.delay)
}

function b_fadeOut(num,i){
	if (i>=0){
		if (i==0 || bw.ns4) this.newsWrite(num,i)
		else{
			obj = bw.ie4?eval(this.obj+"link"):document.getElementById(this.obj+"link")
			obj.style.color = this.color[i]
		}
		i --
		setTimeout(this.obj+".fadeOut("+num+","+i+")",this.speed)
	}else{
		num ++
		if(num==this.news.length) num=0
		works = !this.works?0:this.works==1?1:Math.round(Math.random())
		if(works==0) setTimeout(this.obj+".fadeIn("+num+",0)",500)
		else if (works==1){this.y=1; setTimeout(this.obj+".slideIn("+num+",0)",500)
		}
	}
}
/********************************************************************************************
The init function. Calls the object constructor and set some properties and starts the fade
*********************************************************************************************/
function fadeInit(){
	oNews = new makeNewsObj('divNews','NewsCont',nFont,nFontsize,"nColor","nNews",nFadespeed,nBetweendelay,nSlidespeed,nWorks,nNewsheight)
	oNewsCont = new makeNewsObj('NewsCont')
	works = !oNews.works?0:oNews.works==1?1:Math.round(Math.random())
	/* MOD06 */
	if (window.opera) { oNewsCont.css.visibility = "visible"; return; }
	/* MOD04 */
	firstStory = Math.round(Math.random() * (nNews.length-1));
	if (works==0) oNews.fadeIn(firstStory,0)
	else if (works==1) oNews.slideIn(firstStory,0)
	oNewsCont.css.visibility = "visible"
}