/***********************************************
                                * Ultimate Fade-In Slideshow (v1.51): © 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.
                                ***********************************************/                                
                                var fadeimages=new Array()
                                //SET IMAGE PATHS. Extend or contract array as needed
                                fadeimages[0]=["webimg/supply.png", "http://www.acs-smokedesign.co.uk/download/Certalim Stock Unit (email).pdf", "_new",""];
                                fadeimages[1]=["webimg/stairwell.png", "http://www.acs-smokedesign.co.uk/download/Stairwell AOV System 1.pdf", "_new",""];
                                fadeimages[2]=["webimg/stairwell-lsv.png", "http://www.acs-smokedesign.co.uk/download/Stairwell AOV - System .pdf", "_new"];
                                //fadeimages[2]=["webimg/image3.png", "", ""];
                                //fadeimages[3]=["webimg/image4.png", "", ""];
                                
                                var fadebgcolor="white"
                                ////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, delay, pause, displayorder){
                                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="canvas"+this.slideshowid
                                this.curcanvas=this.canvasbase+"_0"
                                if (typeof displayorder!="undefined")
                                //theimages.sort(function() {return 0.5 - Math.random();}) //thanks to Mike (aka Mwinter) :)
                                this.theimages=theimages
                                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="master'+this.slideshowid+'" style="position:relative;width:'+fadewidth+'px;height:'+fadeheight+'px;overflow:hidden; display:block; float:left;"><div id="'+this.canvasbase+'_0" style="position:absolute;width:'+fadewidth+'px;height:'+fadeheight+'px;top:0;left:0;filter:progid:DXImageTransform.Microsoft.alpha(opacity=10);opacity:0.1;-moz-opacity:0.1;-khtml-opacity:0.1;background-color:'+fadebgcolor+'"></div><div id="'+this.canvasbase+'_1" style="position:absolute;width:'+fadewidth+'px;height:'+fadeheight+'px;top:0;left:0;filter:progid:DXImageTransform.Microsoft.alpha(opacity=10);opacity:0.1;-moz-opacity:0.1;-khtml-opacity:0.1;background-color:'+fadebgcolor+'"></div></div>')
                                else
                                document.write('<div style="display:block; float:left;"><img name="defaultslide'+this.slideshowid+'" src="'+this.postimages[0].src+'"></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 (obj.tempobj.filters&&obj.tempobj.filters[0]){
                                if (typeof obj.tempobj.filters[0].opacity=="number") //if IE6+
                                obj.tempobj.filters[0].opacity=obj.degree
                                else //else if IE5.5-
                                obj.tempobj.style.filter="alpha(opacity="+obj.degree+")"
                                }
                                else if (obj.tempobj.style.MozOpacity)
                                obj.tempobj.style.MozOpacity=obj.degree/101
                                else if (obj.tempobj.style.KhtmlOpacity)
                                obj.tempobj.style.KhtmlOpacity=obj.degree/100
                                else if (obj.tempobj.style.opacity&&!obj.tempobj.filters)
                                obj.tempobj.style.opacity=obj.degree/101
                                }
                                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">'
                                if (this.theimages[picindex][1]!="") //if associated link exists for image
                                slideHTML+='</a>'
                                picobj.innerHTML=slideHTML
                                }
                                
                                
                                fadeshow.prototype.rotateimage=function(){
                                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['defaultslide'+this.slideshowid]
                                ns4imgobj.src=this.postimages[this.curimageindex].src
                                }
                                this.curimageindex=(this.curimageindex<this.postimages.length-1)? this.curimageindex+1 : 0
                                }
                                
                                fadeshow.prototype.resetit=function(){
                                this.degree=10
                                var crossobj=iebrowser? iebrowser[this.curcanvas] : document.getElementById(this.curcanvas)
                                if (crossobj.filters&&crossobj.filters[0]){
                                if (typeof crossobj.filters[0].opacity=="number") //if IE6+
                                crossobj.filters(0).opacity=this.degree
                                else //else if IE5.5-
                                crossobj.style.filter="alpha(opacity="+this.degree+")"
                                }
                                else if (crossobj.style.MozOpacity)
                                crossobj.style.MozOpacity=this.degree/101
                                else if (crossobj.style.KhtmlOpacity)
                                crossobj.style.KhtmlOpacity=this.degree/100
                                else if (crossobj.style.opacity&&!crossobj.filters)
                                crossobj.style.opacity=this.degree/101
                                }
                                
                                
                                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["master"+this.slideshowid] : document.getElementById("master"+this.slideshowid)
                                crossobjcontainer.onmouseover=function(){cacheobj.mouseovercheck=1}
                                crossobjcontainer.onmouseout=function(){cacheobj.mouseovercheck=0}
                                }
                                this.rotateimage()
                                }
                                
                                function homeChange()
                                {
                                    document.getElementById('home').style.backgroundColor = '#007755';
                                }
                                function homeChangeBack()
                                {
                                    document.getElementById('home').style.backgroundColor = '#c9d8e5';
                                }
                                function aboutChange()
                                {
                                    document.getElementById('about').style.backgroundColor = '#007755';
                                }
                                function aboutChangeBack()
                                {
                                    document.getElementById('about').style.backgroundColor = '#abafc4';
                                }
                                function productsChange()
                                {
                                    document.getElementById('products').style.backgroundColor = '#007755';
                                }
                                function productsChangeBack()
                                {
                                    document.getElementById('products').style.backgroundColor = '#7e85a8';
                                }
                                function servicesChange()
                                {
                                    document.getElementById('services').style.backgroundColor = '#007755';
                                }
                                function servicesChangeBack()
                                {
                                    document.getElementById('services').style.backgroundColor = '#4c5c90';
                                }
                                function projectsChange()
                                {
                                    document.getElementById('projects').style.backgroundColor = '#007755';
                                }
                                function projectsChangeBack()
                                {
                                    document.getElementById('projects').style.backgroundColor = '#093a7c';
                                }
                                function teamChange()
                                {
                                    document.getElementById('team').style.backgroundColor = '#007755';
                                }
                                function teamChangeBack()
                                {
                                    document.getElementById('team').style.backgroundColor = '#00275f';
                                }
                                function newsChange()
                                {
                                    document.getElementById('news').style.backgroundColor = '#007755';
                                }
                                function newsChangeBack()
                                {
                                    document.getElementById('news').style.backgroundColor = '#002051';
                                }
                                function contactChange()
                                {
                                    document.getElementById('contact').style.backgroundColor = '#007755';
                                }
                                function contactChangeBack()
                                {
                                    document.getElementById('contact').style.backgroundColor = '#001c49';
                                }
                                function linksChange()
                                {
                                    document.getElementById('links').style.backgroundColor = '#007755';
                                }
                                function linksChangeBack()
                                {
                                    document.getElementById('links').style.backgroundColor = '#001d3a';
                                }