var currentFontSize = 4;



function revertStyles(fontsize){

	currentFontSize = fontsize;

	changeFontSize(0);

}



function changeFontSize(sizeDifference){

	//get css font size

	var rule = getRuleByName("body.fs" + (currentFontSize + sizeDifference));

	if (rule){

		document.body.style.fontSize = rule.style.fontSize;

		currentFontSize = currentFontSize + sizeDifference;

		createCookie("FontSize", currentFontSize, 365);

		equalHeightInit();

	}

	return;

};



function getRuleByName(ruleName){

	for (i=0; i<document.styleSheets.length; i++){

		var style = document.styleSheets[i];

		var rules = style.cssRules?style.cssRules:style.rules;

		if (rules){

			for (j = 0; j<rules.length; j++){

				if (rules[j].selectorText.trim().toUpperCase() == ruleName.trim().toUpperCase()){

					return rules[j];

				}

			}

		}

	}

	return null;

}



function setActiveStyleSheet(title) {

	createCookie("ColorCSS", title, 365);

	//window.location.reload();

	window.location.reload();

	return;

}



function createCookie(name,value,days) {

  if (days) {

    var date = new Date();

    date.setTime(date.getTime()+(days*24*60*60*1000));

    var expires = "; expires="+date.toGMTString();

  }

  else expires = "";

  document.cookie = name+"="+value+expires+"; path=/";

}



function setScreenType(screentype){

	bclass = document.body.className.trim();

	if (bclass.indexOf(' ') > 0){

		bclass = bclass.replace(/^\w+/,screentype);

	}else{

		bclass = screentype + ' ' + bclass;

	}



	document.body.className = bclass;

	equalHeightInit();

	jatabinit();

	createCookie("ScreenType", screentype, 365);

}



String.prototype.trim = function() { return this.replace(/^\s+|\s+$/g, ""); };



function changeToolHilite(oldtool, newtool) {

	if (oldtool != newtool) {

		if (oldtool) {

			oldtool.src = oldtool.src.replace(/-hilite/,'');

		}

		newtool.src = newtool.src.replace(/.gif$/,'-hilite.gif');

	}

}



//addEvent - attach a function to an event

function jaAddEvent(obj, evType, fn){ 

 if (obj.addEventListener){ 

   obj.addEventListener(evType, fn, false); 

   return true; 

 } else if (obj.attachEvent){ 

   var r = obj.attachEvent("on"+evType, fn); 

   return r; 

 } else { 

   return false; 

 } 

}



function equalHeight (elems, offset){

  if (!offset) offset = 0;

	if (!elems) return;

	var maxh = 0;

	for (var i=0; i<elems.length; i++)

	{

		if (elems[i] && elems[i].scrollHeight > maxh) maxh = elems[i].scrollHeight;

	}

	for (i=0; i<elems.length; i++){

		if (elems[i]) elems[i].parentNode.style.height = (maxh+offset) + "px";

	}

}



function getElem (id) {

	var obj = document.getElementById (id);

	if (!obj) return null;

	var divs = obj.getElementsByTagName ('div');

	if (divs && divs.length >= 1) return divs[divs.length - 1];

	return null;

}



function getFirstDiv (id) {

	var obj = document.getElementById (id);

	if (!obj) return null;

	var divs = obj.getElementsByTagName ('div');

	if (divs && divs.length >= 1) return divs[0];

	return obj;

}



function getDivElemsByClass (parent, className) {

	var objs = parent.getElementsByTagName ('div');

	var elems = new Array();

	var j = 0;

	for (var i=0; i<objs.length; i++)

	{

		if (instr(objs[i].className, className) )

		{

			elems[j++] = objs[i];

		}

	}

	return elems;

}



function instr(str, item){

	var arr = str.split(" ");

	for (var i = 0; i < arr.length; i++){

		if (arr[i] == item) return true;

	}

	return false;

}



function equalHeightInit (){

  var botsl = document.getElementById ('ja-botsl');

  if (botsl) {

	  var objs = getElementsByClass ('moduletable*', botsl, 'DIV');

	  equalHeight (objs, 0);

  }

  var topsl = document.getElementById ('ja-topsl');

  if (topsl) {

	  var objs = getElementsByClass ('moduletable*', topsl, 'DIV');

	  equalHeight (objs, 0);

  }

}



jaAddEvent (window, 'load', equalHeightInit);



jaToolsHover = function() {

	var jautw = document.getElementById("jausertoolswrap");	

	if (!jautw) return;



	jautw.onmouseover=function() {

		this.className="ja-toolswraphover";

	}

	jautw.onmouseout=function() {

		this.className="";

	}

}



jaAddEvent (window, 'load', jaToolsHover);



headerDuration = 100;

headerInt = 13;

headerStep = null;

headerTimeout = 0;

headerToggle = 1; //1: Expend, -1: collapse

tophd = null;

headerHeight = 0;

function toggleHeaderInit () {

  tophd = document.getElementById ('ja-topsl');

  tophdleft = document.getElementById ('ja-topsl-left');

  tophdright = document.getElementById ('ja-topsl-right');

  if (!tophd) return;



  obj = document.getElementById ('ja-topsl-left');

  if (obj && headerHeight < obj.scrollHeight) headerHeight = obj.scrollHeight;

  obj = document.getElementById ('ja-topsl1');

  if (obj && headerHeight < obj.scrollHeight) headerHeight = obj.scrollHeight;

  obj = document.getElementById ('ja-topsl2');

  if (obj && headerHeight < obj.scrollHeight) headerHeight = obj.scrollHeight;

  obj = document.getElementById ('ja-topsl3');

  if (obj && headerHeight < obj.scrollHeight) headerHeight = obj.scrollHeight;

//alert(headerHeight);

  headerStep = parseInt(headerHeight*headerInt / headerDuration);

  //headerTimeout = setTimeout (toggleHeaderGo, headerInt);

  if (headerToggle < 0) {

		headerToggle = 1;

		toggleHeader (null);

	}

}



function toggleHeader (aobj) {

  if (!tophd) return;

  headerToggle = -(headerToggle);

  if (aobj)

  {

	  if (headerToggle > 0)

	  {

		  aobj.className = "ja-cb";

		  aobj.href = "#collapse";

		  aobj.title = "Collapse Spotlight";

	  } else {

		  aobj.className = "ja-ob";

		  aobj.href = "#expend";

		  aobj.title = "Expend Spotlight";

	  }

  }

  if (headerToggle > 0) {

		tophd.style.display = "block";

	} else {

		tophd.style.overflow = "hidden";

		if (document.getElementById('ja-bigicon')) document.getElementById('ja-bigicon').style.display = "none";

	}

  headerTimeout = setTimeout (toggleHeaderGo, headerInt);

}



function toggleHeaderGo () {

  if (headerTimeout) {

    clearTimeout (headerTimeout);

    headerTimeout = 0;

  }

  if (!tophd) {

	  return;

  }

  headerTimeout = setTimeout (toggleHeaderGo, headerInt);

  var stop = false;

  var h = tophd.offsetHeight;

  h += headerStep * headerToggle;

  //alert(h);

  if (h <= 0){

    h = 0;

    tophd.style.display = "none";

    stop = true;      

  }

  if (h > headerHeight){

    //alert(tophd.scrollHeight);

    h = headerHeight;

    stop = true;

	 tophd.style.overflow = "";

	 tophd.style.display = "";

	 if (document.getElementById('ja-bigicon')) document.getElementById('ja-bigicon').style.display = "";

  }

  if (tophdleft) tophdleft.style.height = h + "px";

  if (tophdright) tophdright.style.height = h + "px";

  if (tophd) tophd.style.height = h + "px";

  

  if (stop) {

	clearTimeout (headerTimeout);

    headerTimeout = 0;

	createCookie("HeaderToggle", headerToggle, 365);

  }

}



function preloadImages () {

	var imgs = new Array();

	for (var i = 0; i < arguments.length; i++) {

		var imgsrc = arguments[i];

		imgs[i] = new Image();

		imgs[i].src = imgsrc;

	}

}





function getElementsByClass(searchClass,node,tag) {

	var classElements = new Array();

	var j = 0;

	if ( node == null )

		node = document;

	if ( tag == null )

		tag = '*';

	var els = node.getElementsByTagName(tag);

	var elsLen = els.length;

	var pattern = new RegExp('(^|\\s)'+searchClass+'(\\s|$)');

	for (var i = 0; i < elsLen; i++) {

		if ( pattern.test(els[i].className) ) {

			classElements[j] = els[i];

			j++;

		}

	}

	//alert(searchClass + j);

	return classElements;

}



function addMouseOver (className) {

	objs = getElementsByClass (className, document, 'DIV');

	if (objs){

		for (i=0; i<objs.length; i++){

			objs[i].onmouseover=function() {

				this.className+=" hover";

			}

			objs[i].onmouseout=function() {

				this.className=this.className.replace(new RegExp(" hover\\b"), "");

			}



		}

	}

}



function jashowtabcontent (obj) {

	var tabdisplay = document.getElementById ('ja-tab-content');

	if (!tabdisplay) return;

	var tabcontents = getElementsByClass ('ja-tab-content', obj, "DIV");

	if (!tabcontents) return;

	tabdisplay.innerHTML = tabcontents[0].innerHTML;

	jatabresetclass(obj);

}



function jatabresetclass (obj) {

	var jatab = document.getElementById ('ja-tabswrap');

  if (jatab) {

	  var lis = getElementsByClass ('ja-tab-li', jatab, "LI");

    if (!lis) return;

    for (var i=0; i<lis.length; i++) {

      lis[i].className = lis[i].className.replace(new RegExp(" ja-tab-hover\\b"), "");

    }

    obj.className += " ja-tab-hover";

  }

}



function jatabinit (){

	var jatab = document.getElementById ('ja-tabswrap');

  if (jatab) {

	  var tabcontents = getElementsByClass ('ja-tab-content', jatab, "DIV");

	  if (tabcontents) {

	   var tabdisplay = document.getElementById ('ja-tab-content');

	   var divobj = document.createElement ("DIV");



	   divobj.style.display = "block";

	   divobj.style.position = "absolute";

	   divobj.style.top = "-1000px";

	   divobj.style.width = tabdisplay.offsetWidth + "px";

	   document.body.appendChild (divobj);

	   var maxh = 0;

      for (var i=0; i<tabcontents.length; i++) {

        divobj.innerHTML = tabcontents[i].innerHTML;

        if (maxh < divobj.offsetHeight) maxh = divobj.offsetHeight;

      }

     tabdisplay.style.height = (maxh + 20) + "px";

	   document.body.removeChild (divobj);

    }

	  var lis = getElementsByClass ('ja-tab-li', jatab, "LI");

    if (!lis) return;

    jashowtabcontent (lis[0]);

    

  }

}



jaAddEvent (window, 'load', jatabinit);



function jaInitHover () {

  addMouseOver ('ja-newsitem-inner');

}

jaAddEvent (window, 'load', jaInitHover);