/**
 * Checks/unchecks all tables
 *
 * @param   string   the form name
 * @param   boolean  whether to check or to uncheck the element
 *
 * @return  boolean  always true
 */
function setCheckboxes(the_form, do_check)
{
    var elts      = (typeof(document.forms[the_form].elements['selected_db[]']) != 'undefined')
                  ? document.forms[the_form].elements['selected_db[]']
                  : (typeof(document.forms[the_form].elements['selected_tbl[]']) != 'undefined')
          ? document.forms[the_form].elements['selected_tbl[]']
          : document.forms[the_form].elements['selected_fld[]'];
    var elts_cnt  = (typeof(elts.length) != 'undefined')
                  ? elts.length
                  : 0;

    if (elts_cnt) {
        for (var i = 0; i < elts_cnt; i++) {
            elts[i].checked = do_check;
        } // end for
    } else {
        elts.checked        = do_check;
    } // end if... else

    return true;
} // end of the 'setCheckboxes()' function 



// Szövegcserélés
function changeText(name, id) {
  document.getElementById(id).innerHTML = name;	
}



// ----------------------------------------------------------------------------



// Aktív CSS beállítása
function setActiveStyleSheet(title, reset) {
  var i, a, main;
  SetCookie('FontSize1', title, exp);
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if (a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") ) {
      a.disabled = true;
      if(a.getAttribute("title") == title) {
        a.disabled = false;
      }
    }
  }
}

function setStyle() {
	var style = readCookie("FontSize1");
	if (style != null) {
		setActiveStyleSheet(style, 0);
	}
}



// Süti-műveletek
var expDays = 30;
var exp = new Date(); 
var font_size=1;
exp.setTime(exp.getTime() + (expDays*24*60*60*1000));

function SetCookie (name, value) {
  var argv = SetCookie.arguments;  
  var argc = SetCookie.arguments.length;  
  var expires = (argc > 2) ? argv[2] : null;  
  var path = "/";
  var domain = (argc > 4) ? argv[4] : null;  
  var secure = (argc > 5) ? argv[5] : false;  
  document.cookie = name + "=" + escape (value) + 
  ((expires == null) ? "" : ("; expires=" + expires.toGMTString())) + 
  ((path == null) ? "" : ("; path=" + path)) +  
  ((domain == null) ? "" : ("; domain=" + domain)) +    
  ((secure == true) ? "; secure" : "");
}

function getCookieVal (offset) {  
  var endstr = document.cookie.indexOf (";", offset);  
  if (endstr == -1)    
    endstr = document.cookie.length;  
    return unescape(document.cookie.substring(offset, endstr));
}

function GetCookie (name) {  
  var arg = name + "=";  
  var alen = arg.length;  
  var clen = document.cookie.length;  
  var i = 0;  
  while (i < clen) {    
    var j = i + alen;    
    if (document.cookie.substring(i, j) == arg)      
      return getCookieVal (j);    
      i = document.cookie.indexOf(" ", i) + 1;    
    if (i == 0)
      break;   
  }
  return null;
}



// Méretező függvény
function fontsizeInit() {
  var favorite = GetCookie('FontSize1');
  if (favorite != null) {
    switch (favorite) {
      case 'text1' : 	setActiveStyleSheet('text1', 1);
        var font_size = 1;
      break;
      case 'text2' : 	setActiveStyleSheet('text2', 1);
        var font_size = 2;
      break;
      case 'text3' : setActiveStyleSheet('text3', 1);
        var font_size = 3;
      break;
      case 'text4' : setActiveStyleSheet('text4', 1);
        var font_size = 4;
      break;
    }
  } else {
    setActiveStyleSheet('text1', 1);
    var font_size = 1;
  }
}



// Betűméret növelése
function increase() {

  if(font_size < 4) font_size++;

  if (font_size == 1) {
    text_size = "text1";
  } 
  if (font_size == 2) {
    text_size = "text2";
  } 
  if (font_size == 3) {
    text_size = "text3";
  } 
  if (font_size == 4) {
    text_size = "text4";
  }       
  setActiveStyleSheet(text_size, 1);

}



// Betűméret csökkentése
function decrease() {

  if(font_size > 1) font_size--;

  if (font_size == 4) {
    text_size = "text4";
  }
  if (font_size == 3) {
    text_size = "text3";
  }
  if (font_size == 2) {
    text_size = "text2";
  }
  if (font_size == 1) {
    text_size = "text1";
  }
  setActiveStyleSheet(text_size, 1);

}