function chcity(){
 xxx=fform.city.value;
 document.location='?go=tech_catalog&rcity='+xxx;
}

function chcity2(){
 xxx=fform.city.value;
 document.location='?go=salon_catalog&rcity='+xxx;
}

function chcateg(){
 xxx=fch.selcateg.value;
 document.location='?go=regsalon&selcateg='+xxx;
}
function chcategtech(){
 xxx=fch.selcateg.value;
 document.location='?go=regtech&selcateg='+xxx;
}