//Fade-in image slideshow- By Dynamic Drive
//For full source code and more DHTML scripts, visit http://www.dynamicdrive.com
//This credit MUST stay intact for use

var slideshow_width = '960px';  //SET IMAGE WIDTH
var slideshow_height = '225px';  //SET IMAGE HEIGHT
var pause = 4000;  //SET PAUSE BETWEEN SLIDE (3000=3 seconds)
var fadeimages = new Array();
var curpos = 10;
var degree = 10;
var curcanvas = "canvas0";
var curimageindex = 0;
var nextimageindex = 1;
var preloadedimages = new Array();
var ie4 = document.all;
var dom = document.getElementById;

function writeSlideShow()
{
    if (ie4 || dom)
        document.write('<div style="position:relative;width:' + slideshow_width + ';height:' + slideshow_height + ';overflow:hidden"><div  id="canvas0" style="position:absolute;width:' + slideshow_width + ';height:' + slideshow_height + ';top:0;left:0;filter:alpha(opacity=10);-moz-opacity:10"></div><div id="canvas1" style="position:absolute;width:' + slideshow_width + ';height:' + slideshow_height + ';top:0;left:0;filter:alpha(opacity=10);-moz-opacity:10"></div></div>');
    else
        document.write('<img name="defaultslide" src="' + fadeimages[0] + '" alt="Fishing Guatemala">');
}


function fadepic() {
    if (curpos < 100) {
        curpos += 10;
        if (tempobj.filters) {
            tempobj.filters.alpha.opacity = curpos;
        }
        else if (tempobj.style.MozOpacity) {
            tempobj.style.MozOpacity = curpos / 100;
        }
    }
    else {
        clearInterval(dropslide)
        nextcanvas = (curcanvas == "canvas0") ? "canvas0" : "canvas1";
        tempobj = ie4 ? eval("document.all." + nextcanvas) : document.getElementById(nextcanvas);
        tempobj.innerHTML = '<img src="' + fadeimages[nextimageindex] + '" alt="Fishing Guatemala">';
        nextimageindex = (nextimageindex < fadeimages.length - 1) ? nextimageindex + 1 : 0;
        setTimeout("rotateimage()", pause);
    }
}

function rotateimage() {
    if (ie4 || dom) {
        resetit(curcanvas);
        var crossobj = tempobj = ie4 ? eval("document.all." + curcanvas) : document.getElementById(curcanvas);
        crossobj.style.zIndex++;
        var temp = 'setInterval("fadepic()",50)';
        dropslide = eval(temp);
        curcanvas = (curcanvas == "canvas0") ? "canvas1" : "canvas0";
    }
    else {
        document.images.defaultslide.src = fadeimages[curimageindex];
    }
    curimageindex = (curimageindex < fadeimages.length - 1) ? curimageindex + 1 : 0;
}

function resetit(what) {
    curpos = 10;
    var crossobj = ie4 ? eval("document.all." + what) : document.getElementById(what);
    if (crossobj.filters)
        crossobj.filters.alpha.opacity = curpos;
    else if (crossobj.style.MozOpacity)
        crossobj.style.MozOpacity = curpos / 100;
}

function startSlideshow() {
    for (p = 0; p < fadeimages.length; p++) {
        preloadedimages[p] = new Image();
        preloadedimages[p].src = fadeimages[p];
    }
    if (ie4 || dom)
    {
        var crossobj = ie4 ? eval("document.all." + curcanvas) : document.getElementById(curcanvas);
        crossobj.innerHTML = '<img src="' + fadeimages[curimageindex] + '">';
        rotateimage();
    }
    else
        setInterval("rotateimage()", pause);
}

function switchImage(imgName, imgSrc) {
    if (document.images) {
        document.images[imgName].src = "images/" + imgSrc;
    }
}