/***********************************************
* Ultimate Fade-In Slideshow (v1.5): © Dynamic Drive (http://www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit http://www.dynamicdrive.com/ for this script and 100s more.
***********************************************/

/***********************************************
* Modified for use in Header Image
* v-1.0: Initial Version
* v-1.1: Fixed for JavaScript errors with IE6
* v-1.2: Added Loop limit
***********************************************/
 
////NO need to edit beyond here/////////////
 
var fadearray=new Array() //array to cache fadeshow instances
var fadeclear=new Array() //array to cache corresponding clearinterval pointers
 
var dom=(document.getElementById) //modern dom browsers
var iebrowser=document.all
 
function fadeshow(theimages, fadewidth, fadeheight, borderwidth, fadebgcolor, delay, pause, displayorder, maxrotations) {
	
	this.rotations=0
	this.maxrotations=maxrotations
	this.pausecheck=pause
	this.mouseovercheck=0
	this.delay=delay
	this.degree=10 //initial opacity degree (10%)
	this.curimageindex=0
	this.nextimageindex=1
	fadearray[fadearray.length]=this
	this.slideshowid=fadearray.length-1
	this.canvasbase="himg_canvas"+this.slideshowid
	this.curcanvas=this.canvasbase+"_0"
	
	this.theimages=theimages
	if (typeof displayorder!="undefined")
			theimages.sort(function() {return 0.5 - Math.random();}) //thanks to Mike (aka Mwinter) :)
	
	this.imageborder=parseInt(borderwidth)
	this.postimages=new Array() //preload images
	
	for (p=0;p<theimages.length;p++){
		this.postimages[p]=new Image()
		this.postimages[p].src=theimages[p][0]
	}
 
	var fadewidth=fadewidth+this.imageborder*2
	var fadeheight=fadeheight+this.imageborder*2
	 
	if (iebrowser&&dom||dom) { //if IE5+ or modern browsers (ie: Firefox)
		document.write('<div id="himg_master'+this.slideshowid+'" style="position:relative;top:0px;left:0px;width:'+fadewidth+'px;height:'+fadeheight+'px;overflow:hidden;">')
		document.write('<div id="'+this.canvasbase+'_0" style="position:absolute;width:'+fadewidth+'px;height:'+fadeheight+'px;top:0px;left:0px;filter:progid:DXImageTransform.Microsoft.alpha(opacity=10);-moz-opacity:10;-khtml-opacity:10;background-color:'+fadebgcolor+'"></div>')
		document.write('<div id="'+this.canvasbase+'_1" style="position:absolute;width:'+fadewidth+'px;height:'+fadeheight+'px;top:0px;left:0px;filter:progid:DXImageTransform.Microsoft.alpha(opacity=10);-moz-opacity:10;background-color:'+fadebgcolor+'"></div>')
		document.write('</div>')
	} else {
		document.write('<div><img name="defaultslide'+this.slideshowid+'" src="'+this.postimages[0].src+'" alt="'+this.theimages[0][3]+'"></div>')
	}
		 
	if (iebrowser&&dom||dom) //if IE5+ or modern browsers such as Firefox
		this.startit()
	else {
		this.curimageindex++
		setInterval("fadearray["+this.slideshowid+"].rotateimage()", this.delay)
	}
}

function fadepic(obj){
	if (obj.degree<100){
		obj.degree+=10
		if ((typeof obj.tempobj.filters == 'object')&&(typeof obj.tempobj.filters['DXImageTransform.Microsoft.Alpha'] == 'object')) obj.tempobj.filters['DXImageTransform.Microsoft.Alpha'].opacity=obj.degree // IE6+
		else if (obj.tempobj.style.filter) obj.tempobj.style.filter="alpha(opacity="+obj.degree+")" // IE5.5-
		else if (obj.tempobj.style.MozOpacity) obj.tempobj.style.MozOpacity=obj.degree/101			// Mozilla
		else if (obj.tempobj.style.KhtmlOpacity) obj.tempobj.style.KhtmlOpacity=obj.degree/100  // Konqueror, Safari
	}
	else{
		clearInterval(fadeclear[obj.slideshowid])
		obj.nextcanvas=(obj.curcanvas==obj.canvasbase+"_0")? obj.canvasbase+"_0" : obj.canvasbase+"_1"
		obj.tempobj=iebrowser? iebrowser[obj.nextcanvas] : document.getElementById(obj.nextcanvas)
		obj.populateslide(obj.tempobj, obj.nextimageindex)
		obj.nextimageindex=(obj.nextimageindex<obj.postimages.length-1)? obj.nextimageindex+1 : 0
		setTimeout("fadearray["+obj.slideshowid+"].rotateimage()", obj.delay)
	}
}

 
fadeshow.prototype.populateslide=function(picobj, picindex){
	var slideHTML=""
	if (this.theimages[picindex][1]!="") //if associated link exists for image
		slideHTML='<a href="'+this.theimages[picindex][1]+'" target="'+this.theimages[picindex][2]+'">'
	slideHTML+='<img src="'+this.postimages[picindex].src+'" border="'+this.imageborder+'px" alt="'+this.theimages[picindex][3]+'">'
	if (this.theimages[picindex][1]!="") //if associated link exists for image
		slideHTML+='</a>'
	picobj.innerHTML=slideHTML
}
 

fadeshow.prototype.rotateimage=function(){
	// If we exceeded the rotation limit stop the rotation
	if (this.maxrotations!=0 && this.rotations>=this.maxrotations) {
		return;
	}

	if (this.pausecheck==1) //if pause onMouseover enabled, cache object
		var cacheobj=this
	if (this.mouseovercheck==1)
		setTimeout(function(){cacheobj.rotateimage()}, 100)
	else if (iebrowser&&dom||dom){
		this.resetit()
	
		var crossobj=this.tempobj=iebrowser? iebrowser[this.curcanvas] : document.getElementById(this.curcanvas)
	
		crossobj.style.zIndex++
		fadeclear[this.slideshowid]=setInterval("fadepic(fadearray["+this.slideshowid+"])",50)
		this.curcanvas=(this.curcanvas==this.canvasbase+"_0")? this.canvasbase+"_1" : this.canvasbase+"_0"
		}
	else{
		var ns4imgobj=document.images[this.canvasbase+"_0"+this.slideshowid]
		ns4imgobj.src=this.postimages[this.curimageindex].src
	}
	this.curimageindex=(this.curimageindex<this.postimages.length-1)? this.curimageindex+1 : 0
	
	// If we need to limit to number of rotations
	// increment counter on every first image
	if (this.maxrotations!=0 && this.curimageindex==0) { this.rotations++ }
}

 
fadeshow.prototype.resetit=function(){
	this.degree=10
	var crossobj=iebrowser? iebrowser[this.curcanvas] : document.getElementById(this.curcanvas)

	if ((typeof crossobj.filters == 'object')&&(typeof crossobj.filters['DXImageTransform.Microsoft.Alpha'] == 'object')) crossobj.filters['DXImageTransform.Microsoft.Alpha'].opacity=this.degree // IE6+
	else if (crossobj.style.filter) crossobj.style.filter="alpha(opacity="+this.degree+")" // IE5.5-
	else if (crossobj.style.MozOpacity) crossobj.style.MozOpacity=this.degree/101			// Mozilla
	else if (crossobj.style.KhtmlOpacity) crossobj.style.KhtmlOpacity=this.degree/100  // Konqueror, Safari
}
 
 
fadeshow.prototype.startit=function(){
	var crossobj=iebrowser? iebrowser[this.curcanvas] : document.getElementById(this.curcanvas)

	this.populateslide(crossobj, this.curimageindex)

	if (this.pausecheck==1){ //IF SLIDESHOW SHOULD PAUSE ONMOUSEOVER
		var cacheobj=this
		var crossobjcontainer=iebrowser? iebrowser["himg_master"+this.slideshowid] : document.getElementById("himg_master"+this.slideshowid)
		crossobjcontainer.onmouseover=function(){cacheobj.mouseovercheck=1}
		crossobjcontainer.onmouseout=function(){cacheobj.mouseovercheck=0}
	}

	this.rotateimage()

}