// Funciones del script de cambio de imágenes

var slideshow_width='920px';
var slideshow_height='215px';
var pause=3000;

var fadeimages=new Array();

fadeimages[0]=["images/fotoHome01.jpg", "", ""];
fadeimages[1]=["images/fotoHome02.jpg", "", ""];
fadeimages[2]=["images/fotoHome03.jpg", "", ""];
fadeimages[3]=["images/fotoHome05.jpg", "", ""];
fadeimages[4]=["images/fotoHome06.jpg", "", ""];


var preloadedimages=new Array()
for (p=0;p<fadeimages.length;p++){
    preloadedimages[p]=new Image();
    preloadedimages[p].src=fadeimages[p][0];
    //alert("Cargada la imagen " + fadeimages[p][0] + "");
}

var ie4=document.all;
var dom=document.getElementById;

if (ie4||dom){
    //prompt('','<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;visibility: hidden"></div></div>');
    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;visibility: hidden"></div></div>');
}else{
    document.write('<img name="defaultslide" src="'+fadeimages[0][0]+'">');
}

var curpos=0;
var degree=10;
var curcanvas="canvas0";
var curimageindex=0;
var nextimageindex=1;

function fadepic(){
    if (curpos<100){
        curpos+=2;
        if (tempobj.filters)
            tempobj.filters.alpha.opacity=curpos;
        else if (tempobj.style.MozOpacity)
            tempobj.style.MozOpacity=curpos/101;
    }else{
        clearInterval(dropslide);
        nextcanvas=(curcanvas=="canvas0")? "canvas0" : "canvas1";
        tempobj=ie4? eval("document.all."+nextcanvas) : document.getElementById(nextcanvas);
        tempobj.innerHTML=insertimage(nextimageindex);
        nextimageindex=(nextimageindex<fadeimages.length-1)? nextimageindex+1 : 0;
        var tempobj2=ie4? eval("document.all."+nextcanvas) : document.getElementById(nextcanvas);
        tempobj2.style.visibility="hidden";
        setTimeout("rotateimage()",pause);
    }
}

function insertimage(i){
    var tempcontainer=fadeimages[i][1]!=""? '<a href="'+fadeimages[i][1]+'" target="'+fadeimages[i][2]+'">' : "";
    tempcontainer+='<img src="'+fadeimages[i][0]+'" border="0">';
    tempcontainer=fadeimages[i][1]!=""? tempcontainer+'</a>' : tempcontainer;
    return tempcontainer;
}

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

function resetit(what){
    curpos=0;
    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/101;
}

function startit(){
    var crossobj=ie4? eval("document.all."+curcanvas) : document.getElementById(curcanvas);
    crossobj.innerHTML=insertimage(curimageindex);
    rotateimage();
}

if (ie4||dom){
    //window.document.onload = function(){startit()};
    startit();
}else{
    setInterval("rotateimage()",pause);
}