﻿// JScript File
var currentImageIndex = 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 blendimage(divid, imageid, imageIndex, millisec) {
    var speed = Math.round(millisec / 100);
    var timer = 0;
    
    //set the current image as background
    document.getElementById('backGroundImage').src  = document.getElementById(imageid).src;
    
    //make image transparent
    changeOpac(0, imageid);
    
    //make new image
    document.getElementById(imageid).src = image_url[imageIndex].src;
    //document.write(image_url[imageIndex].src);
    
    //var preThumbID ='thumbImage_' + currentImageIndex;
    document.getElementById('thumbImage_' + currentImageIndex).className = 'hompPageThumb';
    currentImageIndex = imageIndex;
    //fade in image
    for(i = 0; i <= 100; i++) {
        setTimeout("changeOpac(" + i + ",'" + imageid + "')",(timer * speed));
        timer++;
    }
    //Change the link for the Main Image
    document.getElementById('mainImageLink').href = image_link[currentImageIndex];
    
    //Change the className of the 
    
    document.getElementById('thumbImage_' + imageIndex).className = 'hompPageThumbOver';
}


