function changeval ( valfield )
{
var frm=document.forms[0]
var url = window.location.href;

urllist = url.split ( "=");
urlcat = urllist[1].split ( "&" );
urlcat = urlcat[0].split ( "~" );

url = urllist[0] + "=" + urlcat[0] + "~" + urlcat[1] + "~" + urlcat[2] + "~" + urlcat[3] + "~" +  valfield.value;

window.location.href = url + "&start=1&count=300&SearchOrder=4";
}

function recalcvals ( fc )
{
var frm=document.forms[0]
var url = window.location.href;
url=url.toLowerCase()
i=1
i2=1

url=url.substr(url.indexOf('query='),url.length)
url=url.substr(0,url.indexOf('&'))
var qval=url.replace(/query=/gi,'')
url=window.location.href;
url=url.toLowerCase();

lst=new Array;
fld=new Array;
newquery=""

lst[1]=frm.thiscat.value
lst[2]=frm.thiscat2.value
lst[3]=frm.aland.value
lst[4]=frm.asender.value
lst[5]=frm.adatum.value
lst[6]=frm.asex.value
lst[7]=frm.adiszi.value

fld[1]="sport"
fld[2]="ort"
fld[3]="land"
fld[4]="sender"
fld[5]="datum"
fld[6]="sex"
fld[7]="disziplin"

if ( !fc )
{fc=fld.length-1}

while (i<=fc)
{
if ( lst[i]!="" )
{
if (newquery=="")
{newquery=newquery.concat("FIELD+"+fld[i]+"="+lst[i])}
else
{newquery=newquery.concat("+AND+FIELD+"+fld[i]+"="+lst[i])}
}
i=i+1
}
url=url.replace(qval,newquery)

window.location.href = url;
}