function vereinbarterpreis()
{

    window.document.fragebogen.versand_preis.value=" ";
	window.document.fragebogen.bild_preis.value=" ";
	window.document.fragebogen.rabatt_preis.value=" ";
	if (window.document.fragebogen.vereinbarung.checked==true) { window.document.fragebogen.preis.value="n.v."; }
	else { window.document.fragebogen.preis.value=" "; }
}



function text_formatter(text,txt_breite)
{
	var br_breite=4;
	var text_new_testen="";
	var text_new_vorher="";
	var text_new_nachher="";
	var unter_grenze=0;
	var ober_grenze=txt_breite;
	var leerzeichen_index=0;
	
	txt_breite=txt_breite-1;
	
	if (text.length>txt_breite)
	{
	      while (ober_grenze<text.length){
		    text_new_testen=text.substring(unter_grenze,ober_grenze);
			leerzeichen_index=text_new_testen.lastIndexOf(" ");
			if (leerzeichen_index<=0) { leerzeichen_index=unter_grenze+txt_breite; }
			else { leerzeichen_index=leerzeichen_index+unter_grenze; }
			text_new_vorher=text.substring(0,leerzeichen_index);
			text_new_nachher=text.substring(leerzeichen_index+1,text.length);
			text=text_new_vorher+"<BR>"+text_new_nachher;
		    unter_grenze=leerzeichen_index+br_breite+1;
			ober_grenze=leerzeichen_index+txt_breite+br_breite;			
	     }
	}
	return text;
}

function Zufall(obergrenze)
{
  var x=Math.random();
  var i;
  i=Math.round(x*obergrenze);
   return i;
} //Zufall

function encrypt(text)
{
  var text_new="";
  var start=5;
  var zeichen;
  var gefunden=false;
  var zuf=0;
  var index_zeichen=0;
  var kk= new Array("§","\"","Ü","!"," ","r","s","6","t","G","i","ö","*","+","Ä","P","5",
  "ä","e","b","w","T","I","$","%","C","ü","a","L","U","f","B","j","k","l","N","Q",">","4",
  "S","d","c","E","D","W","Z","&","v","V",";","q","7","g","h",":","#","'","<","3",
  "x","Ö","z","X","R","H","/","(",")","=","?","p","8","_","m","-","F","2",
  ".","y","u","K",",","J","@","0","ß","\\","A","M","o","9","n","O","Y","1");
  
  for (i=0;i<text.length;i++)
  {
	zeichen=text.charAt(i);    
	     if ((zeichen=="[") || (zeichen=="]") || (zeichen=="|"))
		 {
		      	 if (zeichen=="[") { zeichen="{"; }
			     if (zeichen=="]") { zeichen="}";  }
			     if (zeichen=="|") { zeichen="/"; }
		 }
		 if (Zufall(20)>=19) 
		 {
		    zuf=Zufall(2); 
	
			if (zuf==0) { text_new=text_new+"["; start=3; }
			if (zuf==1) { text_new=text_new+"]"; start=1; }
			if (zuf==2) { text_new=text_new+"|"; start=2; }
		 }
		 {
		
	     	gefunden=false; j=0;
	     	while ((j<=kk.length) && (gefunden==false))
		 	{
		    	if (kk[j]==zeichen) { gefunden=true;index_zeichen=j; }
		    	j++;
		 	}
         	if (gefunden==false) {
			   //  alert("Zeichen "+zeichen+" wurde nicht gefunden"); 
		    }
		 	else { text_new=text_new+kk[(index_zeichen+start)%kk.length]; } 	
		 }	 
  } 
  return text_new;
}