JavaScript Headline Fader with Snow-Effect

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JavaScript Headline Fader with Snow-Effect
Add this cosy snowing headline fader to your site and bring x-mas into the hearts of your visitors. Add as many messages and snow-flakes as you like. Easy configuration of size, colors, borders, font-attributes and snow-effect. No images required. Crossbrowser: Internet Explorer 5x/6x/7x/8x/9x, Firefox 2x/3x/4x, Opera 7x/8x/9x/10x/11x, Google Chrome 4x/5x/6x7x/8x/9x/.

Configuration:

Step 1: Open your webpage. Add the below where you wish the Headline Fader to appear:

<script>
// CREDITS:
// Headline Fader with snow-effect
// By Peter Gehrig
// Copyright (c) 2011 Peter Gehrig. All rights reserved.
// Permission given to use the script provided that this notice remains as is.
// Additional scripts can be found at http://www.fabulant.com

// IMPORTANT:
// If you add this script to a script-library or script-archive
// you have to add a highly visible link to
// http://www.fabulant.com on the webpage
// where this script will be featured

/////////////////////////////////////////////////
// START OF SCRIPT-CONFIGURATION
/////////////////////////////////////////////////

// Type the messages into the text-Array. Add as many as you like.
var text=new Array("Hello, thank you for visiting fabulant.com.", "We love to show you some dirty tricks.", "Merry x-mas and happy holidays.", "Come back soon.")

// Type a link for each message. If you don't want to add a link add a "#" instead
var textlink=new Array("http://www.fabulant.com","http://www.fabulant.com","http://www.fabulant.com","http://www.fabulant.com")

// Type the target-window for each link. Acceepted values are "_blank", "_top", 
// "_parent" or the name of any frame
var texttarget=new Array("_top","_top","_top","_top")

// Set the font for the headline-fader
var textfont="Arial"

// Set the font-color for the headline-fader (hexadecimal triplet values recommended)
var textfontcolor="#AAAAFF"

// Set the rollover-color for the headline-fader (hexadecimal triplet values recommended)
var textfontcolorrollover="#ffff00"

// Set the font-size for the headline-fader (points)
var textfontsize=12

// Set the background-color for the headline-fader (hexadecimal triplet values recommended)
var textbgcolor="#000000"

// Set the width of the headline-fader (pixels)
var textwidth=400

// Set the height of the headline-fader (pixels)
var textheight=120

// Set the pause between the messages (seconds)
var textpause=2

// Set the borderwidth (pixels)
var textborder=3

// Set the border-color (hexadecimal triplet values recommended)
var textbordercolor="#AAAAFF"

// Set the horizontal text-position. Allowed values are "center" or "left" or "right"
var textalign="center"

// Set the vertical text-position. Allowed values are "middle" or "top" or "bottom"
var textvalign="middle"

// Set the number of snowflakes (more than 20 - 30 not recommended)
var snowmax=20

// Set the colors for the snow. Add as many colors as you like
var snowcolor=new Array("#aaaacc","#ddddFF","#ccccDD")

// Set the fonts, that create the snowflakes. Add as many fonts as you like
var snowtype=new Array("Arial Black","Arial Narrow","Times","Comic Sans MS")

// Set the letter that creates your snowflake (recommended:*)
var snowletter="*"

// Set the speed of sinking (recommended values range from 0.3 to 2)
var sinkspeed=0.6

// Set the maximal-size of your snowflaxes (points)
var snowmaxsize=16

// Set the minimal-size of your snowflaxes (points)
var snowminsize=8

// Set font-style. Acceptable values are "normal" or "italic"
var textitalic="normal"

// Set font-weight. Acceptable values are "normal" or "bold"
var textweight="bold"

/////////////////////////////////////////////////
// END OF SCRIPT-CONFIGURATION
/////////////////////////////////////////////////

// do not edit below this line
var textdecoration="none"
var transparency=100
var transparencystep=5
var x_pos=0
var y_pos=0
var i_text=0
if (textitalic=="italic") {var textitalicA="<i>"; var textitalicB="</i>"}
else {var textitalicA="<i>"; var textitalicB="</i>"}
if (textweight=="bold") {var textweightA="<b>"; var textweightB="</b>"}
else {var textweightA=""; var textweightB=""}
var textweightA="<b>"
var textweightB="</b>"
var tickercontent
var pausefade=40
var oneloopfinished=false
var snow=new Array()
var marginbottom
var marginright
var timer
var i_snow=0
var x_mv=new Array();
var crds=new Array();
var lftrght=new Array();
var textfontsizeHTML=Math.floor(textfontsize/4)
textpause*=1000

if (textfontsizeHTML<1) {textfontsizeHTML=1}
if (textfontsizeHTML>=7) {textfontsizeHTML=7}

var browserinfos=navigator.userAgent 
var ns4=document.layers
var ns6=document.getElementById&&!document.all&&!browserinfos.match(/Opera/)
var ie=document.all&&!browserinfos.match(/Opera/)
var ie5=document.all&&document.getElementById&&!browserinfos.match(/Opera/)
var opera=browserinfos.match(/Opera/)

function changecontent() {
	getcontent()
	i_text++
	if (i_text>=text.length) {i_text=0}	
	if (ie) {
		ticker.innerHTML=content
		fadein()
	}
	if (ns6 || opera) {
		document.getElementById('ticker').innerHTML=content
		fadein()
	}

if (ns4) {
		document.roof.document.ticker.document.write(content)
		document.roof.document.ticker.document.close()
		var texttimer=setTimeout("changecontent()",textpause)
	}	
}

function fadein() {
	if (transparency<100){
		transparency+=transparencystep
		if (ie) {
			document.all.ticker.filters.alpha.opacity=transparency
		}
		if (ns6 || opera) {
			document.getElementById('ticker').style.opacity=transparency/100
		}
		var fadetimer=setTimeout("fadein()",pausefade)
	}
	else {
		clearTimeout(fadetimer)
		setTimeout("fadeout()",textpause)
	}
}

function fadeout() {
	if (transparency>0){
		transparency-=transparencystep
		if (ie) {
			document.all.ticker.filters.alpha.opacity=transparency
		}
		if (ns6 || opera) {
			document.getElementById('ticker').style.opacity=transparency/100
		}
		var fadetimer=setTimeout("fadeout()",pausefade)
	}
	else {
		clearTimeout(fadetimer)
		setTimeout("changecontent()",1000)
	}
}

getcontent()
function getcontent() {
	if (ie) {
		var tablewidth=textwidth-2*textborder
		var tableheight=textheight-2*textborder
	}
	else {
		var tablewidth=textwidth
		var tableheight=textheight
	}
	if (ie || ns6 || opera) {	
		var padding=parseInt(textborder)+3
		content="<table width="+tablewidth+" height="+tableheight+" cellpadding="+padding+" cellspacing=0 border=0><tr valign="+textvalign+"><td align="+textalign+">"
		content+="<a href=\""+textlink[i_text]+"\" target=\""+texttarget[i_text]+"\" style=\"position:relative;font-family:\'"+textfont+"\';font-size:"+textfontsize+"pt;font-weight:"+textweight+";text-decoration:"+textdecoration+";color:"+textfontcolor+";font-style:"+textitalic+";\" onMouseOver=\"this.style.color=\'"+textfontcolorrollover+"\'\" onMouseOut=\"this.style.color=\'"+textfontcolor+"\'\">"
		content+=text[i_text]
		content+="</a></td></tr></table>"
	}
	else {	
		content="<table width="+tablewidth+" height="+tableheight+" cellpadding="+textborder+" cellspacing=0><tr valign="+textvalign+"><td align="+textalign+">"
		content+="<a href=\""+textlink[i_text]+"\" target=\""+texttarget[i_text]+"\" style=\"position:relative;font-family:\'"+textfont+"\';font-size:"+textfontsize+"pt;font-weight:"+textweight+";text-decoration:"+textdecoration+";color:"+textfontcolor+";font-style:"+textitalic+";\">"
		content+=text[i_text]
		content+="</a></td></tr></table>"

framecontent="<table width="+tablewidth+" height="+tableheight+" cellpadding=0 cellspacing=0 border="+textborder+"><tr><td>"
		framecontent+="<font color=\""+textbgcolor+"\">"
		framecontent+="."
		framecontent+="</font>"
		framecontent+="</td></tr></table>"
	}
}

function randommaker(range) {		
	rand=Math.floor(range*Math.random())
    return rand
}

function initsnow() {
	marginbottom = textheight
	marginright = textwidth
	var snowsizerange=snowmaxsize-snowminsize
	for (i=0;i<=snowmax;i++) {
		crds[i] = 0;                      
    	lftrght[i] = Math.random()*15;         
    	x_mv[i] = 0.03 + Math.random()/10;
		snow[i]=document.getElementById("s"+i)
		snow[i].style.fontFamily=snowtype[randommaker(snowtype.length)]
		snow[i].size=randommaker(snowsizerange)+snowminsize
		snow[i].style.fontSize=snow[i].size
		snow[i].style.color=snowcolor[randommaker(snowcolor.length)]
		snow[i].sink=sinkspeed*snow[i].size/5
		snow[i].posx=randommaker(marginright-snow[i].size)
		snow[i].posy=randommaker(2*marginbottom-marginbottom-2*snow[i].size)
		snow[i].style.left=snow[i].posx+"px"
		snow[i].style.top=snow[i].posy+"px"
	}
	movesnow();changecontent()
}

if (ie || ns6 || opera) {
	if (ns6) {
		textwidth-=2*textborder
		textheight-=2*textborder
	}
	document.write("<table border=0 cellpadding=0 cellspacing=0><tr><td width="+textwidth+" height="+textheight+" valign=top>")
	document.write("<div id=\"roof\" style=\"position:relative;width:"+textwidth+"px;height:"+textheight+"px;font-family:\'"+textfont+"\';border-style:solid;border-color:"+textbordercolor+";border-width:"+textborder+"px;background-color:"+textbgcolor+";overflow:hidden\">")
	
	document.write("<div id=\"ticker\" style=\"position:absolute;top:"+-textborder+"px;left:"+-textborder+"px;width:"+textwidth+"px;height:"+textheight+"px;font-family:\'"+textfont+"\';font-size:"+textfontsize+"pt;font-weight:"+textweight+";font-style:"+textitalic+";border-style:solid;border-color:"+textbordercolor+";border-width:"+textborder+"px;background-color:"+textbgcolor+";overflow:hidden\;filter:alpha(opacity=500)\">")
	document.write("</div>")
	for (i=0;i<=snowmax;i++) {
	document.write("<div id='s"+i+"' style='position:absolute;top:-"+snowmaxsize+"'>"+snowletter+"</div>")
	}
	document.write("</div>")
	document.write("</td></tr></table>")
	window.onload=initsnow
}

else if (ns4) {
		document.write("<table border=0 cellpadding=0 cellspacing=0><tr><td width="+textwidth+" height="+textheight+" valign=top>")
	document.write("<ilayer name=\"roof\" width="+textwidth+" height="+textheight+">")
		document.write("<layer name=\"tickerframe\" width="+textwidth+" height="+textheight+" top=0 left=0 bgcolor="+textbgcolor+">")
		document.write(framecontent)
		document.write("</layer>")
		document.write("<layer name=\"ticker\" width="+textwidth+" height="+textheight+" top=0 left=0>")
		document.write()
		document.write("</layer>")
		document.write("</ilayer>")
		document.write("</td></tr></table>")
	window.onload=changecontent
}
</script>

Step 2: Configure font-attributes, size, colors, and snow-effect according to the instructions on top of the script.