// name - name of the cookie
// value - value of the cookie
// [expires] - expiration date of the cookie (defaults to end of current session)
// [path] - path for which the cookie is valid (defaults to path of calling document)
// [domain] - domain for which the cookie is valid (defaults to domain of calling document)
// [secure] - Boolean value indicating if the cookie transmission requires a secure transmission
// * an argument defaults when it is assigned null as a placeholder
// * a null placeholder is not required for trailing omitted arguments
function SPsetCookie(name, value, expires, path, domain, secure) {
  //alert('SET '+name+' = '+value);
  var curCookie = name + "=" + escape(value) +
      ((expires) ? "; expires=" + expires.toGMTString() : "") +
      ((path) ? "; path=" + path : "") +
      ((domain) ? "; domain=" + domain : "") +
      ((secure) ? "; secure" : "");
  document.cookie = curCookie;
}

// name - name of the desired cookie
// * return string containing value of specified cookie or null if cookie does not exist
function SPgetCookie(name) {
  var dc = document.cookie;
  var prefix = name + "=";
  var begin = dc.indexOf("; " + prefix);
  if (begin == -1) {
    begin = dc.indexOf(prefix);
    if (begin != 0) return null;
  } else
    begin += 2;
  var end = document.cookie.indexOf(";", begin);
  if (end == -1)
    end = dc.length;
    //alert('GET '+unescape(dc.substring(begin + prefix.length, end)));
  return unescape(dc.substring(begin + prefix.length, end));
}
// name - name of the cookie
// [path] - path of the cookie (must be same as path used to create cookie)
// [domain] - domain of the cookie (must be same as domain used to create cookie)
// * path and domain default if assigned null or omitted if no explicit argument proceeds
function SPdeleteCookie(name, path, domain) {
  if (getCookie(name)) {
    document.cookie = name + "=" + 
    ((path) ? "; path=" + path : "") +
    ((domain) ? "; domain=" + domain : "") +
    "; expires=Thu, 01-Jan-70 00:00:01 GMT";
  }
}


// default style
var style=2;


//cookie uitlezen voor eventuele andere style en datum cookie verlengen
expireDate = new Date;
expireDate.setMonth(expireDate.getMonth()+6);
styletmp = parseInt(SPgetCookie('tekstgrootte'));
if (!styletmp) style=2; else style=styletmp;

//actieve stylesheet setten
function setActiveStyleSheet(title) {
	var i, a, main;
	
	for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
		if(a.getAttribute("rel").indexOf("stylesheet") != -1 && a.getAttribute("title")) {
			a.disabled = true;
			if(a.getAttribute("title") == title) {
				a.disabled = false;
			}
		}
	}
	
	// alle 3 unselected maken
	obj_1 = document.getElementById('fontconfiglink_1');
	obj_1.className = 'fontconfig_1';
	
	obj_2 = document.getElementById('fontconfiglink_2');
	obj_2.className = 'fontconfig_2';
	
	obj_3 = document.getElementById('fontconfiglink_3');
	obj_3.className = 'fontconfig_3';
	
	// actieve selected maken
	obj_act = document.getElementById('fontconfiglink_'+style);
	obj_act.className = 'fontconfig_'+style+' fontconfig_sel';
}

//stylesheet switchen
function swapStyle(newSize){
	
	
  if(newSize=="smaller"){
    if(style>1){
      style = style-1;
    }
  }
  if(newSize=="bigger"){  
    //if(style<5){
    if(style<3){
      style = style+1;
    }
  }
  if(newSize == 'fix_1') {
  	style = 1;
  }
  if(newSize == 'fix_2') {
  	style = 2;
  }
  if(newSize == 'fix_3') {
  	style = 3;
  }

  switch (style)
  {
	  case 1:
		  //alert("U kiest nu de kleinste lettergrootte");
		  break
	  case 2:
		  //alert("U kiest nu de standaard lettergrootte");
		  break
	  case 3:
		  //alert("U kiest nu de grootste lettergrootte");
		  break
  }

  var newstylesheet = "tekstgrootte"+style;
  setActiveStyleSheet(newstylesheet);
  expireDate = new Date;
  expireDate.setMonth(expireDate.getMonth()+6);
  SPsetCookie('tekstgrootte', style, expireDate);
}


// in context van html-doc laden
setActiveStyleSheet('tekstgrootte'+style);