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);

		equalHeight();

	}

	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){

	createCookie("ScreenType", screentype, 365);

	//window.location.reload();

	window.location.reload();

	return;



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

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

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

	}else{

		bclass = screentype + ' ' + bclass;

	}



	document.body.className = bclass;

	equalHeightInit();

	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){

	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 + "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 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 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 ja_spl = document.getElementById('ja-botsl');

	if (!ja_spl) return;

	var jablocks = getElementsByClass ("moduletable", ja_spl, "DIV");

	equalHeight (jablocks);

}



jaAddEvent (window, 'load', equalHeightInit);



function fixIE() {

	var objs = getElementsByClass ("createdate", null, "TD");

	if (objs) {

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

			objs[i].innerHTML = "<span>" + objs[i].innerHTML + "</span>";

		}

	}

}

jaAddEvent (window, 'load', fixIE);