var img1 = "/images/pic1.jpg";
var img2 = "/images/pic2.jpg";
var img3 = "/images/pic3.jpg";
var img4 = "/images/pic4.jpg";
var img5 = "/images/pic5.jpg";
var img6 = "/images/pic6.jpg";
var img7 = "/images/pic7.jpg";
var img8 = "/images/pic8.jpg";
var img9 = "/images/pic9.jpg";
var img10 = "/images/pic10.jpg";
var img11 = "/images/pic11.jpg";
var img12 = "/images/pic12.jpg";
var img13 = "/images/pic13.jpg";
var img14 = "/images/pic14.jpg";
var img15 = "/images/pic15.jpg";
var img16 = "/images/pic16.jpg";
var img17 = "/images/pic17.jpg";
var img18 = "/images/pic18.jpg";
var img19 = "/images/pic19.jpg";
var img20 = "/images/pic20.jpg";
var img21 = "/images/pic21.jpg";
var img22 = "/images/pic22.jpg";
var img23 = "/images/pic23.jpg";
var img24 = "/images/pic24.jpg";
var img25 = "/images/pic25.jpg";

var slideshowimages = new Array(
			  img1,img2,img3,img4,img5,img6,img7,img8,img9,img10
       ,img11,img12,img13,img14,img15,img16,img17,img18,img19,img20
       ,img21,img22,img23,img24,img25
);

var currentindex = 0;

function opacity(id, opacStart, opacEnd, millisec) 
{
    //speed for each frame
    var speed = Math.round(millisec / 100);
    var timer = 0;

    //determine the direction for the blending, if start and end are the same nothing happens
    if(opacStart > opacEnd) {
        for(i = opacStart; i >= opacEnd; i--) {
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
            timer++;
        }
    } else if(opacStart < opacEnd) {
        for(i = opacStart; i <= opacEnd; i++)
            {
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
            timer++;
        }
    }
}

//change the opacity for different browsers
function changeOpac(opacity, id) 
{
    var object = document.getElementById(id).style;
    object.opacity = (opacity / 100);
    object.MozOpacity = (opacity / 100);
    object.KhtmlOpacity = (opacity / 100);
    object.filter = "alpha(opacity=" + opacity + ")";    
} 

function changeImage(divid, newimageurl)
{
	document.getElementById(divid).style.backgroundImage = "url(" +  newimageurl + ")";
}

function blendimages(divid1, divid2, millisec) 
{
	var speed = Math.round(millisec / 100);
	var timer = 0;
	
	for(i = 100; i >= 0; i--) 
	{
		setTimeout("changeOpac(" + i + ",'" + divid1 + "')",(timer * speed));
		setTimeout("changeOpac(" + (100-i) + ",'" + divid2 + "')",(timer * speed));
		timer++;
	}	
	
	setTimeout("changeImage('" + divid1 + "', '" + slideshowimages[currentindex]+ "')",7000);
	setTimeout("slideshow('" + divid2 + "', '" + divid1 + "')",8000);	 
}

function slideshow(divid1, divid2)
{
	currentindex++;	
	if (currentindex > (slideshowimages.length-1)) currentindex = 0;
	blendimages(divid1, divid2, 2500);	
}