function form(typ)       {document.all.prev_tf.innerHTML="<img src=\"images/wappen/preview/formen/"+typ+".gif\" border=\"0\" height=\"37\" width=\"37\">";document.all.tf.innerHTML=typ;prev();}
function muster(typ)     {document.all.prev_tm.innerHTML="<img src=\"images/wappen/preview/muster/"+typ+".gif\" border=\"0\" height=\"37\" width=\"37\">";document.all.tm.innerHTML=typ;prev();}
function symbol(typ)     {document.all.prev_ts.innerHTML="<img src=\"images/wappen/preview/symbole/"+typ+".gif\" border=\"0\" height=\"37\" width=\"37\">";document.all.ts.innerHTML=typ;prev();}
function form_a(farbe)   {document.all.prev_fa.innerHTML="<img src=\"images/f"+farbe+".gif\" border=\"0\" height=\"22\" width=\"22\">";document.all.fa.innerHTML=farbe;prev();}
function form_b(farbe)   {document.all.prev_fb.innerHTML="<img src=\"images/f"+farbe+".gif\" border=\"0\" height=\"22\" width=\"22\">";document.all.fb.innerHTML=farbe;prev();}
function muster_a(farbe) {document.all.prev_ma.innerHTML="<img src=\"images/f"+farbe+".gif\" border=\"0\" height=\"22\" width=\"22\">";document.all.ma.innerHTML=farbe;prev();}
function muster_b(farbe) {document.all.prev_mb.innerHTML="<img src=\"images/f"+farbe+".gif\" border=\"0\" height=\"22\" width=\"22\">";document.all.mb.innerHTML=farbe;prev();}
function symbol_a(farbe) {document.all.prev_sa.innerHTML="<img src=\"images/f"+farbe+".gif\" border=\"0\" height=\"22\" width=\"22\">";document.all.sa.innerHTML=farbe;prev();}
function symbol_b(farbe) {document.all.prev_sb.innerHTML="<img src=\"images/f"+farbe+".gif\" border=\"0\" height=\"22\" width=\"22\">";document.all.sb.innerHTML=farbe;prev();}

function prev() {var wappencode = document.all.tf.value
	                              + document.all.fa.value
	                              + document.all.fb.value
	                              + document.all.tm.value
	                              + document.all.ma.value
	                              + document.all.mb.value
	                              + document.all.ts.value
	                              + document.all.sa.value
	                              + document.all.sb.value;
	               if (wappencode.length==9)            
	               document.all.preview.innerHTML="<img src=\"generator.php?code="+wappencode+"\" height=\"256\" width=\"256\" border=\"0\">";}