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

var offsetfrommouse = [15, 25]; //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 defaultimageheight = 40; // maximum image size.
var defaultimagewidth = 40; // maximum image size.

var timer;
var wd;
var ht;
function gettrailobj() {
    //alert('hi);
    if (document.getElementById)
    //alert(document.getElementById("div_left1_preview_div").style);
        return document.getElementById("div_left1_preview_div").style
}

function gettrailobjnostyle() {
    if (document.getElementById)
        return document.getElementById("div_left1_preview_div")
}


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


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

function showtrail(imagename, title, width, height) {

    var imgsrc;
    imgsrc = 'Admin%5CExtraimages%5C' + imagename;

    i = imgsrc;
    //i = imagename;
    t = title;
    w = width;
    h = height;

    wd = width;
    ht = height;
    //alert(title);
    timer = setTimeout("show('" + i + "',t,w,h);", 200);
    //alert(timer);
}
function show(imagename, title, width, height) {

    var docwidth = document.all ? truebody().scrollLeft + truebody().clientWidth : pageXOffset + window.innerWidth - offsetfrommouse[0]
    var docheight = document.all ? Math.min(truebody().scrollHeight, truebody().clientHeight) : Math.min(window.innerHeight)
    if ((navigator.userAgent.indexOf("Konqueror") == -1 || navigator.userAgent.indexOf("Firefox") != -1 || (navigator.userAgent.indexOf("Opera") == -1 && navigator.appVersion.indexOf("MSIE") != -1)) && (docwidth > 650 && docheight > 500)) {
        (width == 0) ? width = defaultimagewidth : '';
        (height == 0) ? height = defaultimageheight : '';

        defaultimageheight = height
        defaultimagewidth = width

        document.onmousemove = followmouse;
        newHTML = '<div class="border_preview" style="width:' + width + 'px;height:' + height + 'px;"><div id="loader_container"><div id="loader"><div align="center">Loading Image preview...</div><div id="loader_bg"><div id="progress"> </div></div></div></div>';
        //newHTML = newHTML + '<h2 class="pagetitle">' + ' '+title + '</h2>'

        newHTML = newHTML + '<div class="preview_temp_load"><img onload="javascript:remove_loading();" src="' + imagename + '" border="0"></div>';
        newHTML = newHTML + '</div>';
        //alert('after Follow htmp');
        //alert(navigator.userAgent.indexOf("MSIE"));
        //if(navigator.userAgent.indexOf("MSIE")!=-1 && navigator.userAgent.indexOf("Opera")==-1 ){
        newHTML = newHTML + '<iframe src="about:blank" scrolling="no" frameborder="0" width="' + width + '" height="' + height + '"></iframe>';
        //}		
        //alert(newHTML);
        gettrailobjnostyle().innerHTML = newHTML;
        //alert(document.getElementById("div_left1_preview_div").innerHTML);	
        gettrailobj().display = "block";
        //alert(document.getElementById("div_left1_preview_div").innerHTML);	
    }
}

function followmouse(e) {

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


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


    //e.clientX + document.body.scrollLeft + document.documentElement.scrollLeft



    if (defaultimageheight > 150) { defaultimageheight = 600; }

    if (typeof e != "undefined") {

        if (docwidth - e.pageX < defaultimagewidth + 2 * offsetfrommouse[0]) {
            xcoord = e.pageX - xcoord - defaultimagewidth; // Move to the left side of the cursor
        } else {
            xcoord += e.pageX;
        }
        if (docheight - e.pageY < defaultimageheight + 2 * offsetfrommouse[1]) {
            ycoord += e.pageY - Math.max(0, (2 * offsetfrommouse[1] + defaultimageheight + e.pageY - docheight - truebody().scrollTop));
        } else {
            ycoord += e.pageY;
        }


        if (ycoord < 0) { ycoord = 50; }

        if (defaultimageheight > 599) {
            if (ycoord >= 155) {
                ycoord = ycoord + 60;
                docheight = ycoord;
            }
            if (ycoord >= 400) {
                ycoord = ycoord + 110;
            }
        }
        if (ycoord >= 1200) {
            ycoord = ycoord - 120;
        }



        //alert('inner undefined');
    } else if (typeof window.event != "undefined") {


        if (docwidth - event.clientX < defaultimagewidth + 2 * offsetfrommouse[0]) {
            xcoord = event.clientX + truebody().scrollLeft - xcoord - defaultimagewidth; // Move to the left side of the cursor
            //alert('1');	
        } else {
            xcoord += truebody().scrollLeft + event.clientX
        }
        if (docheight - event.clientY < (defaultimageheight + 2 * offsetfrommouse[1])) {
            ycoord += event.clientY + truebody().scrollTop - Math.max(0, (2 * offsetfrommouse[1] + defaultimageheight + event.clientY - docheight));
            //	alert('2');	
        } else {
            ycoord += truebody().scrollTop + event.clientY;
            //alert('3');	
        }
    }

    gettrailobj().left = xcoord + "px"
    gettrailobj().top = ycoord + "px"



}