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

var offsetfrommouse=[50,25]; //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 = 400;	// maximum image size.
var defaultimagewidth = 475;	// maximum image size.

var timer;
var wd;
var ht;
function gettrailobj(){
//alert('hi);
if (document.getElementById)
//alert(document.getElementById("preview_div").style);
    return document.getElementById("_ctl0_ContentPlaceHolder1_preview_div").style
}

function gettrailobjnostyle(){
if (document.getElementById)
    return document.getElementById("_ctl0_ContentPlaceHolder1_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;
	//imgsrc = 'Resources/consumableimages/' + imagename.value;
	imgsrc = 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){
    if (width < 301)
    {
        var docwidth = document.all ? truebody().scrollLeft + truebody().clientWidth : pageXOffset + window.innerWidth - 1
    }
    else
	{
	    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>';

       gettrailobjnostyle().innerHTML = newHTML;
		gettrailobj().display="block";
		
	}
}

function followmouse(e) {

    if (wd < 301)
    {
        var xcoord = 1
    }
  else {
      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 (wd < 301) {

            if (docwidth - e.pageX < defaultimagewidth + 2 * 1) {
                xcoord = e.pageX - xcoord - defaultimagewidth; // Move to the left side of the cursor
            } else {
                xcoord += e.pageX;
            }
        }
        else
        {
            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 (wd < 301) {

        if (docwidth - event.clientX < defaultimagewidth + 2 * 1) {
            xcoord = event.clientX + truebody().scrollLeft - xcoord - defaultimagewidth; // Move to the left side of the cursor
            //alert('1');	
        } else {
            xcoord += truebody().scrollLeft + event.clientX
        }
    }
    else {
        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"
    
    
//    var windowHeight = window.innerHeight ? window.innerHeight : document.documentElement.clientHeight ? document.documentElement.clientHeight : document.body.clientHeight;
//    var h = window.pageYOffset || document.body.scrollTop || document.documentElement.scrollTop;
//    var windowWidth = window.innerWidth ? window.innerWidth : document.documentElement.clientWidth ? document.documentElement.clientWidth : document.body.clientWidth;
//    var IpopTop = ((windowHeight - gettrailobj().offsetHeight) / 2);
//    gettrailobj().top = (IpopTop + h) + 'px';
//    gettrailobj().left = ((document.body.clientWidth / 2)) + 'px';
   

}