/*
Simple Image Trail script- By JavaScriptKit.com
Visit http://www.javascriptkit.com for this script and more
This notice must stay intact
*/

var offsetfrommouse = [18, -4]; //image x,y offsets from cursor position in pixels. Enter 0,0 for no offset
var displayduration = 0; //duration in seconds image should remain visible. 0 for always.
var currentimageheight = 500; // maximum image size.

if (document.getElementById || document.all) 
{
    document.write("<div id='popup' style='position:absolute;'>");
    document.write("</div>");
}

function gettrailobj() {
    if (document.getElementById)
        return document.getElementById("popup").style;
    else if (document.all)
        return document.all.trailimagid.style;
}

function gettrailobjnostyle() {
    if (document.getElementById)
        return document.getElementById("popup");
    else if (document.all)
        return document.all.trailimagid;
}


function truebody() {
    return (!window.opera && document.compatMode && document.compatMode != "BackCompat") ? document.documentElement : document.body
}

function showtrail(imagename, title, description, ratingaverage, ratingnumber, showthumb, height, filetype) {

    if (height > 0) {
        currentimageheight = height;
    }

    document.onmousemove = followmouse;

    cameraHTML = "";

    if (!ratingnumber) {
        ratingnumber = 0;
        ratingaverage = 0;
    }

    for (x = 1; x <= 5; x++) {

        if (ratingaverage >= 1) {
            cameraHTML = cameraHTML + "";
        } else if (ratingaverage >= 0.5) {
            cameraHTML = cameraHTML + "";
        } else {
            cameraHTML = cameraHTML + "";
        }

        ratingaverage = ratingaverage - 1;
    }

    newHTML = "<div>";

    if (showthumb > 0) {
        newHTML = newHTML + "<div>";
        newHTML = newHTML + "<div style=''>";
        newHTML = newHTML + "<img src='" + imagename + "' class='articleImg'></div></div>";
    }

    newHTML = newHTML + "</div>";
    gettrailobjnostyle().innerHTML = newHTML;
    gettrailobj().display = "inline";
}


function hidetrail() {
    gettrailobj().innerHTML = " ";
    gettrailobj().display = "none";
    document.onmousemove = "";
    gettrailobj().left = "-500px";

}

function followmouse(e) {

    var xcoord = offsetfrommouse[0];
    var ycoord = offsetfrommouse[1];

    var docwidth = document.all ? truebody().scrollLeft + truebody().clientWidth : pageXOffset + window.innerWidth - 15
    var docheight = document.all ? Math.min(truebody().scrollHeight, truebody().clientHeight) : Math.min(window.innerHeight)

    if (typeof e != "undefined") {
        if (docwidth - e.pageX < 380) {
            xcoord = e.pageX - xcoord - 400; // Move to the left side of the cursor
        } else {
            xcoord += e.pageX;
        }
        if (docheight - e.pageY < (currentimageheight + 110)) {
            ycoord += e.pageY - Math.max(0, (110 + currentimageheight + e.pageY - docheight - truebody().scrollTop));
        } else {
            ycoord += e.pageY;
        }

    } else if (typeof window.event != "undefined") {
    if (docwidth - event.clientX < 380) {
        xcoord = event.clientX + truebody().scrollLeft - xcoord - 400; // Move to the left side of the cursor
    } else {
        xcoord += truebody().scrollLeft + event.clientX;
    }
        if (docheight - event.clientY < (currentimageheight + 110)) {
            ycoord += event.clientY + truebody().scrollTop - Math.max(0, (110 + currentimageheight + event.clientY - docheight));
        } else {
            ycoord += truebody().scrollTop + event.clientY;
        }
    }

    var docwidth = document.all ? truebody().scrollLeft + truebody().clientWidth : pageXOffset + window.innerWidth - 15;
    var docheight = document.all ? Math.max(truebody().scrollHeight, truebody().clientHeight) : Math.max(document.body.offsetHeight, window.innerHeight);
    if (ycoord < 0) 
    {
        ycoord = ycoord * -1; 
    }
    gettrailobj().left = xcoord + "px";
    gettrailobj().top = ycoord + "px";

}