var $j = jQuery.noConflict();
$j(function(){
//za lazy loader
	$j('.post_img img').lazyload({
    	effect: "fadeIn"
    });
	$j('.post_text img').lazyload({
       effect: "fadeIn"
    });
	$j('.related_posts img').lazyload({
       effect: "fadeIn"
    });
//za show/hide trackbacks list			
	$j('ol.trackbacks').hide();   
	$j('.show_trackbacks').click(function(){   
    $j('ol.trackbacks').slideToggle();	
	});
//za dynamic change input style on focus za #comment_form i #searchform
		//ako e za vsqka otdelno, purviq red e: $j('#comment_form input[type=text]').each(function() {
	$j('input[type=text]').each(function() {
		$j(this).focus(function() {
			$j(this).addClass('focused');	
		});
		$j(this).blur(function() {
			$j(this).removeClass('focused');	
		});
	});
});

//za BACK TO TOP
var ScrollWin = {
	w3c : document.getElementById,
	iex : document.all,
	scrollLoop : false, 
	scrollInterval : null,
	currentBlock : null,
	getWindowHeight : function(){
		if(this.iex) return (document.documentElement.clientHeight) ? document.documentElement.clientHeight : document.body.clientHeight;
		else return window.innerHeight;
	},
	getScrollLeft : function(){
		if(this.iex) return (document.documentElement.scrollLeft) ? document.documentElement.scrollLeft : document.body.scrollLeft;
		else return window.pageXOffset;
	},
	getScrollTop : function(){
		if(this.iex) return (document.documentElement.scrollTop) ? document.documentElement.scrollTop : document.body.scrollTop;
		else return window.pageYOffset;
	},
	getElementYpos : function(el){
		var y = 0;
		while(el.offsetParent){
			y += el.offsetTop
			el = el.offsetParent;
		}
		return y;
	},
	scroll : function(name){
		if(!this.w3c){
			location.href = "#"+name;
			return;
		}
		if(this.scrollLoop){
			clearInterval(this.scrollInterval);
			this.scrollLoop = false;
			this.scrollInterval = null;
		}
		if(this.currentBlock != null) this.currentBlock.className = this.offClassName;
		this.currentBlock = document.getElementById(name);
		this.currentBlock.className = this.onClassName;
		var doc = document.getElementById(this.containerName);
		var documentHeight = this.getElementYpos(doc) + doc.offsetHeight;
		var windowHeight = this.getWindowHeight();
		var ypos = this.getElementYpos(this.currentBlock);
		if(ypos > documentHeight - windowHeight) ypos = documentHeight - windowHeight;
		this.scrollTo(0,ypos);
	},
	scrollTo : function(x,y){
		if(this.scrollLoop){
			var left = this.getScrollLeft();
			var top = this.getScrollTop();
			if(Math.abs(left-x) <= 1 && Math.abs(top-y) <= 1){
				window.scrollTo(x,y);
				clearInterval(this.scrollInterval);
				this.scrollLoop = false;
				this.scrollInterval = null;
			}else{
				window.scrollTo(left+(x-left)/2, top+(y-top)/2);
			}
		}else{
			this.scrollInterval = setInterval("ScrollWin.scrollTo("+x+","+y+")",50);
			this.scrollLoop = true;
		}
	}
};

ScrollWin.containerName = "container"; 
ScrollWin.anchorName    = "anchor";    
ScrollWin.blockName     = "home";     
ScrollWin.onClassName   = "active";   
ScrollWin.offClassName  = "visited"; 

var ns = (navigator.appName.indexOf("Netscape") != -1);
var d = document;
var px = document.layers ? "" : "px";
function JSFX_FloatDiv(id, sx, sy) {
	var el=d.getElementById?d.getElementById(id):d.all?d.all[id]:d.layers[id];
	window[id + "_obj"] = el;
	if(d.layers)el.style=el;
	el.cx = el.sx = sx;el.cy = el.sy = sy;
	el.sP=function(x,y){this.style.left=x+px;this.style.top=y+px;};
	el.flt=function() {
		var pX, pY;
		pX = (this.sx >= 0) ? 0 : ns ? innerWidth : document.documentElement && document.documentElement.clientWidth ? document.documentElement.clientWidth : document.body.clientWidth;
		pY = ns ? pageYOffset : document.documentElement && document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop;
		if(this.sy<0) pY += ns ? innerHeight : document.documentElement && document.documentElement.clientHeight ? document.documentElement.clientHeight : document.body.clientHeight;
		this.cx += (pX + this.sx - this.cx)/8;this.cy += (pY + this.sy - this.cy)/8;
		this.sP(this.cx, this.cy);
		setTimeout(this.id + "_obj.flt()", 40);
	}
	return el;
}

// FORM VALIDATION
function validate(form) {
  var author = form.author.value;
  var email = form.email.value;
  var comment = form.comment.value;
  var emailRegex = /^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$/;
  if(author == "") {
    inlineMsg('author','Не е въведено име.');
    return false;
  }

  if(email == "") {
    inlineMsg('email','Не е въведен e-mail.',2);
    return false;
  }
  if(!email.match(emailRegex)) {
    inlineMsg('email','<strong>Грешка:</strong> Невалиден e-mail.',2);
    return false;
  }
  if(comment == "") {
    inlineMsg('comment','Не е въведен коментар.');
    return false;
  }
  return true;
}

var MSGTIMER = 20;
var MSGSPEED = 5;
var MSGOFFSET = 3;
var MSGHIDE = 3;

function inlineMsg(target,string,autohide) {
  var msg;
  var msgcontent;
  if(!document.getElementById('msg')) {
    msg = document.createElement('div');
    msg.id = 'msg';
    msgcontent = document.createElement('div');
    msgcontent.id = 'msgcontent';
    document.body.appendChild(msg);
    msg.appendChild(msgcontent);
    msg.style.filter = 'alpha(opacity=0)';
    msg.style.opacity = 0;
    msg.alpha = 0;
  } else {
    msg = document.getElementById('msg');
    msgcontent = document.getElementById('msgcontent');
  }
  msgcontent.innerHTML = string;
  msg.style.display = 'block';
  var msgheight = msg.offsetHeight;
  var targetdiv = document.getElementById(target);
  targetdiv.focus();
  var targetheight = targetdiv.offsetHeight;
  var targetwidth = targetdiv.offsetWidth;
  var topposition = topPosition(targetdiv) - ((msgheight - targetheight) / 2);
  var leftposition = leftPosition(targetdiv) + targetwidth + MSGOFFSET;
  msg.style.top = topposition + 'px';
  msg.style.left = leftposition + 'px';
  clearInterval(msg.timer);
  msg.timer = setInterval("fadeMsg(1)", MSGTIMER);
  if(!autohide) {
    autohide = MSGHIDE;  
  }
  window.setTimeout("hideMsg()", (autohide * 1000));
}

function hideMsg(msg) {
  var msg = document.getElementById('msg');
  if(!msg.timer) {
    msg.timer = setInterval("fadeMsg(0)", MSGTIMER);
  }
}

function fadeMsg(flag) {
  if(flag == null) {
    flag = 1;
  }
  var msg = document.getElementById('msg');
  var value;
  if(flag == 1) {
    value = msg.alpha + MSGSPEED;
  } else {
    value = msg.alpha - MSGSPEED;
  }
  msg.alpha = value;
  msg.style.opacity = (value / 100);
  msg.style.filter = 'alpha(opacity=' + value + ')';
  if(value >= 99) {
    clearInterval(msg.timer);
    msg.timer = null;
  } else if(value <= 1) {
    msg.style.display = "none";
    clearInterval(msg.timer);
  }
}

function leftPosition(target) {
  var left = 0;
  if(target.offsetParent) {
    while(1) {
      left += target.offsetLeft;
      if(!target.offsetParent) {
        break;
      }
      target = target.offsetParent;
    }
  } else if(target.x) {
    left += target.x;
  }
  return left;
}

function topPosition(target) {
  var top = 0;
  if(target.offsetParent) {
    while(1) {
      top += target.offsetTop;
      if(!target.offsetParent) {
        break;
      }
      target = target.offsetParent;
    }
  } else if(target.y) {
    top += target.y;
  }
  return top;
}

if(document.images) {
  arrow = new Image(7,80); 
  arrow.src = "images/msg_arrow.gif"; 
}