function clean($string){
	$string = strip_tags($string);
	$string = str_replace(""", "'", $string);
	$string = str_replace("'", "'", $string);
	$string = str_replace(" ", " ", $string);
	$string = str_replace("Ø", " o", $string);
	$string = str_replace("&"," a ",$string);
	$string = str_replace("+"," plus ",$string);
	$string = str_replace("%","procent",$string);
	$string = str_replace("@","-at-",$string);
	$string = str_replace("?","(R)",$string);
	$string = str_replace("?","(R)",$string);
	$string = str_replace("?","(TM)",$string);
	$string = str_replace(">",">",$string);
	$string = str_replace("<","<",$string);
$string = str_replace("&","*",$string);
//$string = str_replace("°","st",$string);
	return $string;
}

ä=>ae,ë=>ie,ö=>oe,ü=>ue,Ä=>AE,Ë=>IE,Ö=>OE,Ü=>UE,á=>a,č=>c,ď=>d,é=>e,ě=>e,í=>i,ľ=>l,ň=>n,ó=>o,ô=>o,ŕ=>r,ř=>r,š=>s,ť=>t,ú=>u,ů=>u,ý=>y,ž=>z,Á=>A,Č=>C,Ď=>D,É=>E,Ě=>E,Í=>I,Ľ=>L,Ň=>N,Ó=>O,Ô=>O,Ŕ=>R,Ř=>R,Š=>S,Ť=>T,Ú=>U,Ů=>U,Ý=>Y,Ž=>Z,°=>st., =>-,Â=>st