function Placefooter() {

  	if (self.innerHeight) {
		var a = window.innerHeight;
  	} else if (window.document.documentElement.clientHeight || window.document.body.clientHeight) {
		var a = window.document.documentElement.clientHeight;
  	} 
	
	newheight = a;
	newheight2 = a-190;
	
	var cont = document.getElementById("t_content").offsetHeight;
	if(cont < newheight) {
		document.getElementById('wrapper').style.minHeight = newheight + 'px';
		document.getElementById('t_content').style.minHeight = newheight2 + 'px';
	}
	
	
}

function setmainwidth() {
	var marginalbreite = document.getElementById('rechts').offsetWidth;
	if(marginalbreite > 10) {
		// document.getElementById('main').style.width = '390px';
	} else {
		// document.getElementById('main').style.width = '580px';
	}
}