try{ns4 = document.layers;} catch(err) {}
try{ie4 = document.all;} catch(err) {}
try{nn6 = document.getElementById && !document.all;} catch(err) {}

try { document.execCommand("BackgroundImageCache", false, true) } catch(err) {}

function showObject(divLayer,e) {
  var y_offset = -76; 
  var x_offset = -15; 
  if(!e){e=window.event;}
  if (ns4) {
     document.divLayer.visibility = "show";
     document.divLayer.display = "block";
     //document.divLayer.left = e.pageX + document.body.scrollLeft + x_offset;
     //document.divLayer.top = e.pageY + document.body.scrollTop + y_offset;
  }
  else if (ie4) {
     document.all[divLayer].style.visibility = "visible";
     document.all[divLayer].style.display = "block";
     //document.all[divLayer].style.left = e.clientX + document.body.scrollLeft + x_offset;
     //document.all[divLayer].style.top = e.clientY + document.body.scrollTop + y_offset;
  }
  else if (nn6) {
     document.getElementById(divLayer).style.visibility = "visible";
     document.getElementById(divLayer).style.display = "block";
     //document.getElementById(divLayer).style.left =  e.clientX + document.body.scrollLeft + x_offset;
     //document.getElementById(divLayer).style.top =  e.clientY + document.body.scrollTop + y_offset;
  }
}


function hideObject(divLayer) {
  if (ns4) {
     document.divLayer.visibility = "hide";
     document.divLayer.display = "none";
  }
  else if (ie4) {
     document.all[divLayer].style.visibility = "hidden";
     document.all[divLayer].style.display = "none";
  }
  else if (nn6) {
     document.getElementById(divLayer).style.visibility = "hidden";
     document.getElementById(divLayer).style.display = "none";
  }
}

function isMouseLeaveOrEnter(e, handler) {
 if (e.type != 'mouseout' && e.type != 'mouseover') return false;
 var reltg = e.relatedTarget ? e.relatedTarget : e.type == 'mouseout' ? e.toElement : e.fromElement;
 while (reltg && reltg != handler) reltg = reltg.parentNode;
 return (reltg != handler);
}

var smallGif = "/sites/SEPRAFILM/Resources/img/btnTextSmaller.gif";
var smallGifOn = "/sites/SEPRAFILM/Resources/img/btnTextSmallerOn.gif";
var normGif = "/sites/SEPRAFILM/Resources/img/btnTextSize.gif";
var normGifOn = "/sites/SEPRAFILM/Resources/img/btnTextSizeOn.gif";
var largeGif = "/sites/SEPRAFILM/Resources/img/btnTextLarger.gif";
var largeGifOn = "/sites/SEPRAFILM/Resources/img/btnTextLargerOn.gif";

var btnSmall = "btnTextSmall";
var btnNorm = "btnTextSize";
var btnLarge = "btnTextLarge";

function switchStyle(style)
{
  if (ns4) {
     document.text_size_style.href = "/sites/SEPRAFILM/Resources/css/" + style;
  }
  else if (ie4) {
     document.all["text_size_style"].href = "/sites/SEPRAFILM/Resources/css/" + style;
  }
  else if (nn6) {
	document.getElementById("text_size_style").href = "/sites/SEPRAFILM/Resources/css/" + style;
  }
  
	// TODO: set the cookie
	createCookie("currentTextSizeStyle", style, 365*24*60*60);
	
	// TODO: switch correct button to on state
	getElement(btnSmall).src = smallGif;
	getElement(btnNorm).src = normGif;
	getElement(btnLarge).src = largeGif;
	
	if(style=="text_size_small.css") getElement(btnSmall).src = smallGifOn;
	if(style=="text_size_normal.css") getElement(btnNorm).src = normGifOn;
	if(style=="text_size_large.css") getElement(btnLarge).src = largeGifOn;
}
function loadStyle()
{
	var steez = readCookie("currentTextSizeStyle");
	if(steez == "text_size_small.css" || steez == "text_size_large.css")
	{
		switchStyle(steez);
	}else{
		switchStyle("text_size_normal.css");
	}
}


function getElement(elem)
{
  if (ns4) {
     return document.elem;
  }
  else if (ie4) {
     return document.all[elem];
  }
  else if (nn6) {
	return document.getElementById(elem);
  }
}

function createCookie(name,value,seconds) {
	if (seconds) {
		var date = new Date();
		date.setTime(date.getTime()+(seconds*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
		document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}