function init() {

	if (window.innerWidth) { 
		var breite = window.innerWidth;
	} else {
		var breite = document.body.offsetWidth;
	}

	if (breite > 1055) {
		setActiveStyleSheet('bigscreen');
	}

}

function setActiveStyleSheet(title) {
  var i, a, main;
  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;
    }
  }
}