// Preload
//var image_array = new Array("images/aboutus_ro.gif", "images/services_ro.gif", "images/samples_ro.gif", "images/faq_ro.gif", "images/testimonials_ro.gif", "images/contactus_ro.gif");
//var preload_image = new Array();

//for (var i = 0; i < image_array.length; i++) {
//    preload_image[i] = new Image();
//    preload_image[i].src = image_array[i];
//}


function rollover(divNum, name, filename) {
    document.images[name].src = filename;
}

function rollIn() {
    opacity(buttonIds[current], 0, 100, 100);
    window.clearInterval(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 e = document.getElementById(id);
    if (e) {
        var object = e.style;
        object.opacity = (opacity / 100);
        object.MozOpacity = (opacity / 100);
        object.KhtmlOpacity = (opacity / 100);
        object.filter = "alpha(opacity=" + opacity + ")";
    }
}

function fadein(id) {
    opacity(id, 0, 100, 500);
}

function Img(id, page) {
    this.id = id;
    this.page = page;
}