function changeCategory(arg) {
 document.f.cat.value=arg;
 document.f.submit();
}

function changeDir(arg) {
 document.f.dir.value=arg;
 document.f.submit();
}

function photos(arg) {
 document.f.photos.value=arg;
 document.f.submit();
}

function maps(arg) {
 document.f.maps.value=arg;
 document.f.submit();
}
var showrentalsmap=maps;
function contactOwners(arg) {
 document.f.contact.value=arg;
 document.f.action='/rentals-inquiry.php';
 document.f.submit();
}

function compare() {
 if (document.f.frm!=null) {a=11} else {a=5}
 s=0;
 rentals=document.f.rentals.value;
 for (i=a;i<a+rentals*2;i+=2) if (document.f[i].checked) s++;
 if (s<2) alert("You need to select at least 2 rentals to compare!");
 else {
	document.f.action='/compare.php';
	document.f.submit();
 }
}

function compare_rentals() {
 if (document.f.frm!=null) a=11; else a=1;
 s=0;
 rentals=document.f.rentals.value;
 for (i=a;i<a+rentals*2;i+=2) {
 if (document.f[i].checked) s++;
 }
 if (s<2) alert("You need to select at least 2 rentals to compare!");
 else {
	document.f.action='/compare.php';
	document.f.submit();
 }
}


function photo(arg) {
 document.f.photos.value=arg;
 document.f.submit();
}