/* Alle Teaser werden ausgeblendet */
function reset_all() {
	document.getElementById("contentTextIntro1a").style.display="none";
	document.getElementById("contentTextIntro1b").style.display="none";
	//document.getElementById("buttonIntro1b").style.display="none";
	document.getElementById("contentTextIntro1c").style.display="none";
	document.getElementById("buttonIntro1c").style.display="none";
	document.getElementById("contentTextIntro1d").style.display="none";
	document.getElementById("buttonIntro1d").style.display="none";
}
/* Ein Teaser wird ein- bzw. ausgeblendet*/
function change_visibility(name) {
  if(document.getElementById(name).style.display == "none") {
	document.getElementById(name).style.display = "block";
  } else { document.getElementById(name).style.display = "none";}
}

/* Ein Teaser wird eingeblendet*/
function change_visibility_on(name) {
  document.getElementById(name).style.display = "block";
}

function change_text_color(name) {
	document.getElementById(name).style.color = "#ffffff";
}
function change_bg(name, img) {
	document.getElementById(name).style.backgroundImage = "url("+img+")";
}

/* Teaser wechseln durch */
var timer;
function layerwechsel1() {
  if (timer != 0) {
	  reset_all();
	  document.getElementById("contentTextIntro1b").style.display="block";
	  //window.setTimeout("layerwechsel2()",6000);
  }
}
function layerwechsel2() {
  if (timer != 0) {
	  reset_all();
	  document.getElementById("contentTextIntro1c").style.display="block";
	  window.setTimeout("layerwechsel3()",6000);
  }
}
function layerwechsel3() {
  if (timer != 0) {
	  reset_all();
	  document.getElementById("contentTextIntro1d").style.display="block";
	  window.setTimeout("layerwechsel1()",6000);
  }
}