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();


	return;





  var i, a, main, arr;


  arr = document.getElementsByTagName("link");


  for(i=0; (a = arr[i]); i++) {


  	var ltitle = a.getAttribute("title");


    if(a.getAttribute("rel").indexOf("style") != -1 && ltitle) {


      a.disabled = true;


      if(ltitle == title) a.disabled = false;


    }


  }


  createCookie("ColorCSS", title, 365);


}





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;


	equalHeight();


	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 addEvent(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 (){


	var obj1 = getElem ('ja-box1');


	var obj2 = getElem ('ja-box2');


	var obj3 = getElem ('ja-box3');


	var maxh = 0;


	if (obj1) maxh = obj1.offsetHeight;


	if (obj2 && obj2.offsetHeight > maxh) maxh = obj2.offsetHeight;


	if (obj3 && obj3.offsetHeight > maxh) maxh = obj3.offsetHeight;


	if (obj1) obj1.parentNode.style.height = maxh + "px";


	if (obj2) obj2.parentNode.style.height = maxh + "px";


	if (obj3) obj3.parentNode.style.height = maxh + "px";


}





function getElem (id) {


	var obj = document.getElementById (id);


	if (!obj) return null;


	divs = obj.getElementsByTagName ('div');


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


	return null;


}


addEvent (window, 'load', equalHeight);