function setContrast(){if(getActiveStyleSheet()==''||getActiveStyleSheet()=='contrast'){setActiveStyleSheet('small')};var c=document.getElementById("contrast");if(blContrast){blContrast=false;c.className=c.className.replace('selC','')}else{blContrast=true;c.className="selC"};setActiveStyleSheet(getActiveStyleSheet())}
function setActiveStyleSheet(title) {

  var i, a, main;
  var aFont = document.getElementById(title);
  var s = document.getElementById("small");
  var m = document.getElementById("medium");
  var l = document.getElementById("large");
  var c = document.getElementById("contrast");
    
  if(aFont != null) {
	  s.className = s.className.replace("selF","");
	  m.className = m.className.replace("selF","");
	  l.className = l.className.replace("selF","");
	  aFont.className = "selF";
	  if(blContrast)c.className = "selC";

  }
  

  
//  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {

	if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")!='' && a.getAttribute("title")!=null) {
      a.disabled = true;
      if(a.getAttribute("title") == title) a.disabled = false;
	  if(blContrast && a.getAttribute("title") == "contrast") a.disabled = false;
	    }
  }
  
  //20100108 - START- workaround per attribuire testo ai P dentro tabelle
	var theVal = '11px';
	switch(title){
		case 'small':
			theVal = '10px';
		break;
		case 'medium':
			theVal = '11px';
		break;
		case 'large':
			theVal = '13px';
		break;
	}
	
	var cssRules='';

	
	var theP = document.getElementsByTagName ('P'); 
	var theDiv = document.getElementsByTagName('DIV'); 
	
	for (i=0;i<theP.length;i++){
		if (theP[i].className.toUpperCase()=='TXT'){
			theP[i].style.fontSize = theVal; 
		}
	}

	for (i=0;i<theDiv .length;i++){
		if (theDiv [i].className.toUpperCase()=='TXT'){
			theDiv [i].style.fontSize = theVal; 
		}
	}

  //20100108 - END

}

function getActiveStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled) return a.getAttribute("title");
  }
  return null;
}

function getPreferredStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1
       && a.getAttribute("rel").indexOf("alt") == -1
       && a.getAttribute("title")
       ) return a.getAttribute("title");
  }
  return null;
}

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=function(e){var cookie=readCookie('style');var cookie2=readCookie('styleContrast');if(cookie2=='true'){var blContrast=true}else{var blContrast=false};var title=cookie?cookie:getPreferredStyleSheet();setActiveStyleSheet(title);}
window.onunload=function(e){var title=getActiveStyleSheet();createCookie('style',title,365);createCookie('styleContrast',blContrast,365)}

var cookie=readCookie('style');
var cookie2=readCookie('styleContrast');
if(cookie2=='true'){var blContrast=true}else{var blContrast=false}
var title=cookie?cookie:getPreferredStyleSheet();
setActiveStyleSheet(title);
if(title==null)setActiveStyleSheet('small');