// JScript File
function resize()
{
    stile = null;

    ok = (document.styleSheets) ? 1:0;
    IE4 = (document.all) ? 1:0;
    NN6 = (!document.all && document.getElementById) ? 1:0;

    if(ok) {
      if(IE4) stile = document.styleSheets[0].rules
      if(NN6) stile = document.styleSheets[0].cssRules 
      } 
      
    return stile;
}


    function cambiaFontSize(size) {
        
        stile = resize();
        if(stile == null) return;
        
        if(size==0) 
        {
            stile[0].style.fontSize = "1em";
            deleteCookie("fontSize","/","");
        }
        else
        {
            oldSize = stile[0].style.fontSize.toString();        
            oldSize = 10 * (stile[0].style.fontSize.toString().substring(0, stile[0].style.fontSize.toString().indexOf('em'))) ;
            
            if((oldSize > 6 && oldSize <18) || (oldSize == 6 && size>0) || (oldSize == 18 && size<0)) 
                stile[0].style.fontSize = ((size + oldSize)/10) + "em";
                
            //stile[1].style.backgroundColor = "green";
            setCookie("fontSize",stile[0].style.fontSize,"","/","","");
        }
       
    }

function setFontSize()
{
    //alert(getCookie("fontSize"));
    if(getCookie("fontSize")==null) return;
    stile = resize();
    if(stile == null) return;
    stile[0].style.fontSize = getCookie("fontSize");
}

/*
var prefsLoaded = false;
var defaultFontSize = 76;
var currentFontSize = defaultFontSize;

function revertStyles(){

	currentFontSize = defaultFontSize;
	changeFontSize(0);

}

function toggleColors(){
	if(currentStyle == "White"){
		setColor("Black");
	}else{
		setColor("White");
	}
}

function changeFontSize(sizeDifference){
	currentFontSize = parseInt(currentFontSize) + parseInt(sizeDifference * 5);

	if(currentFontSize > 100){
		currentFontSize = 100;
	}else if(currentFontSize < 60){
		currentFontSize = 60;
	}

	setFontSize(currentFontSize);
};

function setFontSize(fontSize){
	var stObj = (document.getElementById) ? document.getElementById('content_area') : document.all('content_area');
	document.body.style.fontSize = fontSize + '%';
	
	//alert (document.body.style.fontSize);
};


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 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;
};

window.onload = setUserOptions;

function setUserOptions(){
	if(!prefsLoaded){

		cookie = readCookie("fontSize");
		currentFontSize = cookie ? cookie : defaultFontSize;
		setFontSize(currentFontSize);
		
		prefsLoaded = true;
	}

}

window.onunload = saveSettings;

function saveSettings()
{
  createCookie("fontSize", currentFontSize, 365);
}
*/