function liisi_update() {
	var x = document.forms.lisa;
	var hmp = parseInt(x.hmp.value);
	if(hmp<1) return true;
	var hind = 0;
	var intress = .25;
	var sissemaks = (parseInt(x.sissemaks.value)>0) ? parseInt(x.sissemaks.value):0;
	var kuid = (parseInt(x.kuid.value)>0) ? parseInt(x.kuid.value):1;
	if(kuid>49) kuid = 49;
	for(var i=0;i<hmp+1;i++) {
		if(x['mudel_'+i+'_n']!==undefined && x['hind_'+i+'_n']!==undefined) {
			if(parseInt(x['mudel_'+i+'_n'].value)>-1 && parseInt(x['hind_'+i+'_n'].value)>-1) {
				hind+=parseInt(x['mudel_'+i+'_n'].value) * parseInt(x['hind_'+i+'_n'].value);
			}
		}
		if(x['mudel_'+i+'_r']!==undefined && x['hind_'+i+'_r']!==undefined) {
			if(parseInt(x['mudel_'+i+'_r'].value)>-1 && parseInt(x['hind_'+i+'_r'].value)>-1) {
				hind+=parseInt(x['mudel_'+i+'_r'].value) * parseInt(x['hind_'+i+'_r'].value);
			}
		}
	}
	
	if(hind>2000) intress = .22;
	if(hind>10000) intress = .20;
	if(sissemaks>hind) sissemaks = hind;
	var kuumaks = Math.ceil((hind - sissemaks) * ( 1 + intress * kuid / 12 ) / kuid);

	var l6ppsumma = kuumaks * kuid;
	x.summa.value = hind+'.-';
	x.sissemaks.value = sissemaks;

	x.kuid.value = kuid;
	x.kuumaks.value = kuumaks+'.-';
	x.l6ppsumma.value = (sissemaks+l6ppsumma)+'.-';
}