function selectStyle(styleNew) {
  if(!styleNew || styleNew == ''){;
    var getStyleReg = /styleCurrent=(\w+)/;
    if(getStyleReg.test(document.cookie) == true){
      styleNew = RegExp.$1;
    }
    else{
      styleNew = '';
    }
  }
  if(styleNew != ''){
    if(styleNew == 'default'){
      styleNew = '';
    }
    var stylesAll = document.getElementsByTagName('link');
    for(var i = 0; i < stylesAll.length; i++){
      if(stylesAll[i].title == styleNew){
        stylesAll[i].disabled = false
      }
      else{
        stylesAll[i].disabled = true
      }
    }
    document.cookie = 'styleCurrent=' + styleNew + ';path=/';
  }
}