﻿// JScript File
    var image;
    var i;
    var startedPlaying;
    var iFade = 40;
    var iPause = 8000;
    var sPreSrc = "pages/multimedia/db_intro.image?id=";
    var sPostSrc = "&amp;width=535&amp;height=136&amp;crop=true&amp;crnid=2";
    
    var imgs = new Array('35','34', '33', '32');
    
    function StartFade(){
    	PreloadImages()
        image = document.getElementById('imgFlash');
        //setOpacity(image, 20);
        i = 0;
        image.src = sPreSrc + imgs[i] + sPostSrc;
        startedPlaying = false;
        window.setTimeout("fadeOut('imgChng',100)", iPause);
    }
    
    function setOpacity(obj, opacity) {
        opacity = (opacity == 100)?99.999:opacity;
        // IE/Win
        obj.style.filter = "alpha(opacity:"+opacity+")";

        // Safari<1.2, Konqueror
        obj.style.KHTMLOpacity = opacity/100;

        // Older Mozilla and Firefox
        obj.style.MozOpacity = opacity/100;

        // Safari 1.2, newer Firefox and Mozilla, CSS3
        obj.style.opacity = opacity/100;
    }
    
    function fadeIn(objId,opacity) {
       // alert("fadein[" + i + "]: " + objId);
        
        if (document.getElementById) {
            obj = document.getElementById('imgFlash');
            //alert("fadein: " + obj);
            if (opacity <= 100) {
                setOpacity(obj, opacity);
                opacity += 10;
                //alert("fadein: " + opacity);
                window.setTimeout("fadeIn('imgFlash',"+opacity+")", iFade);
            }else{
                if (startedPlaying == false){
                    startedPlaying = true
                }
                window.setTimeout("fadeOut('imgFlash',"+opacity+")", iPause);
            }
        }
    }
    
    function fadeOut(objId,opacity) {
       // alert("fadein[" + i + "]: " + objId);
        
        if (document.getElementById) {
            obj = document.getElementById('imgFlash');
            //alert("fadein: " + obj);
            if (opacity >= 0) {
                if (opacity == 100 && startedPlaying == true){
                    document.getElementById("flashImage").style.backgroundImage = "url("+sPreSrc + imgs[i] + sPostSrc+")";
                    //alert(sPreSrc + imgs[i] + sPostSrc);
                }
                setOpacity(obj, opacity);
                opacity -= 10;
                //alert("fadein: " + opacity);
                window.setTimeout("fadeOut('imgFlash',"+opacity+")", iFade);
            }else{
                i++;
                if(i == imgs.length){
                    i = 0;
                }
                obj.src = sPreSrc + imgs[i] + sPostSrc;
                window.setTimeout("fadeIn('imgFlash',"+opacity+")", iFade);
            }
        }
    }

	function PreloadImages() {
		var i;
		for(i=0; i<imgs.length;i++){
			var img = new Image();
			img.src = sPreSrc + imgs[i] + sPostSrc;
		}
	  
	}
