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

var offsetfrommouse=[-253,-183]; //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 t_id = setInterval(animate,20);
var t_id = setInterval(animate,20);
var pos=0;
var dir=2;
var len=0;

function animate()
{
var elem = document.getElementById('progress');
if(elem != null) {
if (pos==0) len += dir;
if (len>32 || pos>79) pos += dir;
if (pos>79) len -= dir;
if (pos>79 && len==0) pos=0;
elem.style.left = pos;
elem.style.width = len;
}
}

function remove_loading() {
this.clearInterval(t_id);
var targelem = document.getElementById('loader_container');
targelem.style.display='none';
targelem.style.visibility='hidden';
var t_id = setInterval(animate,60);
}

function gettrailobj(){
if (document.getElementById)
return document.getElementById("preview_div").style
}

function gettrailobjnostyle(){
if (document.getElementById)
return document.getElementById("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(PWimagename,PWwidth,PWheight){
	i = PWimagename
	w = PWwidth
	h = PWheight
	timer = setTimeout("show('"+i+"',w,h);",200);
}
function show(PWimagename,PWwidth,PWheight){
 
  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)) {
		( PWwidth == 0 ) ? PWwidth = defaultimagewidth: '';
		( PWheight == 0 ) ? PWheight = defaultimageheight: '';
			
		PWwidth+=2
		PWheight+=2
		defaultimageheight = PWheight
		defaultimagewidth = PWwidth
	
		document.onmousemove=followmouse; 

		
//		newHTML = '<div style="width:'+  width +'px;height:'+ height +'px;background:transparent;"><div id="loader_container"><div id="loader"><div align="center">Načítám náhled šablony...</div><div id="loader_bg"><div id="progress"></div></div></div></div>';
		newHTML='';
    newHTML = newHTML + '<div class="preview_temp_load"><img src="' + PWimagename + '" style="border:4px;border-color:white;"></div>';
//		newHTML = newHTML + '</div>'; 
		
		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>';
		}		

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

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

	} else if (typeof window.event != "undefined"){
		if (docwidth - event.clientX < defaultimagewidth + 2*offsetfrommouse[1]){
			xcoord = event.clientX + truebody().scrollLeft - xcoord - defaultimagewidth; // Move to the left side of the cursor
		} else {
			xcoord += truebody().scrollLeft+event.clientX
		}
		if (docheight - event.clientY < (defaultimageheight + 2*offsetfrommouse[0])){
			ycoord += event.clientY + truebody().scrollTop - Math.max(0,(2*offsetfrommouse[0] + defaultimageheight + event.clientY - docheight));
		} else {
			ycoord += truebody().scrollTop + event.clientY;
		}
	}
	gettrailobj().left=xcoord+"px"
	gettrailobj().top=ycoord+"px"

}
  
	function checkEmail() {
		var email = document.getElementById('lost_username');
		var butt = document.getElementById('sendpass');
//		var filter = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
			if (email.length == 0) {
				butt.disabled=true
  			email.style.backgroundColor="#FFEBE4"
				email.style.borderColor="#FF0000"
				butt.className="button bad"
				butt.focus;
			}else{			
								
				butt.disabled=false
				butt.className="button"
				email.style.backgroundColor="#F1FCE2"
				email.style.borderColor="#73C300"
				email.focus
			}
	}
	function workingEcho(cesta){
		document.getElementById('working').style.display='block';
		document.getElementById('working').innerHTML="<img src='"+cesta+"clim/images/loader.gif' alt='Zpracovávám požadavek' style='margin:10px;' /><br/><p>Pracuji..</p>";
		document.getElementById('text').style.display='none';
		document.getElementById('form').style.display='none';
	}