/**Funktion zum öffnen eines PopUp*/
function popup(w,h,url) {
        x = screen.availWidth/2-w/2;
        y = screen.availHeight/2-h/2;
        var popupWindow = window.open(url,'','width='+w+',height='+h+',left='+x+',top='+y+',screenX='+x+',screenY='+y);
        
      }
   




/**Funktion zum durchblättern in den AGBs*/      
function browse(add) {

	var closepage = defaultpage;
	if(add == "true") {
		defaultpage = defaultpage+1;
		
		
	}else {
		defaultpage = defaultpage-1;
	}
	
	if(defaultpage<=0) {
		defaultpage = 1;
	}
	
	if(defaultpage>19){
		defaultpage =19;
	}
	
	document.getElementById(closepage).style.display="none";
	document.getElementById(defaultpage).style.display="block";	
	
}