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

var trailimage=["", 200, 200] //image path, plus width and height
var offsetfrommouse=[10,-80] //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 = 300;	// maximum image size.
var currentimagewidth;

if (document.getElementById || document.all) {
    document.write('<div id="trailimageid" style="position:absolute;left:0px;top:0px;padding:0px;background-color:#ffc86e; border: 1px solid #888;">');
    document.write('</div>');
}

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

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

function showtrail(){
    document.onmousemove=followmouse;
}

function hidetrail(){
    gettrailobj().innerHTML = " ";
    gettrailobj().display = "none";
//    gettrailobj().visibility="hidden"
    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.max(truebody().scrollHeight, truebody().clientHeight) 
                               : Math.max(document.body.offsetHeight, window.innerHeight)
        
    if (typeof e != "undefined") {
        if (e.pageX > docwidth/2 + 100) {
            xcoord = e.pageX - xcoord - 300; // 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 ( event.clientX > docwidth/2 + 100){
			xcoord = event.clientX + truebody().scrollLeft - xcoord - currentimagewidth; // Move to the left side of the cursor
		} else {
			xcoord += truebody().scrollLeft+event.clientX
		}
		if (docheight - truebody().scrollHeight - event.clientY < (currentimageheight + 110)){
			ycoord += event.clientY + truebody().scrollTop - Math.max(0,(110 + currentimageheight + event.clientY - docheight));
		} else {
			ycoord += truebody().scrollTop + event.clientY;
		}
	}

	if(ycoord < 0) { ycoord = ycoord*-1; }
	        
    gettrailobj().left=xcoord+"px"
    gettrailobj().top=ycoord+"px"
}

function showlargeimage(filename){
    document.getElementById('trailimageid').innerHTML="<span style='color:#1121a8'><br>Click thumbnail<br>&nbsp;for full details and Quotation&nbsp;<br/><br/></span><img src='images/large/" + filename + ".jpg' border='0'>";
    var img = new Image;
    img.src = 'images/large/' + filename + '.jpg';
    currentimagewidth = img.width;
    if (currentimagewidth < 200) currentimagewidth=200;
    gettrailobj().display="inline";
    document.onmousemove=followmouse;
}