function validateFilter(form){
    if($('accomm_type').value != 'null'){
        var path = '/'+$('place_type_path').value+'/'+$('location_path').value+'/'+$('starts_with').value+'/'+$('accomm_type').value+'/';
        window.location.href = path;
        return true;
    }
    
    if($('starts_with').value != 'null'){
        var path = '/'+$('place_type_path').value+'/'+$('location_path').value+'/'+$('starts_with').value+'/';
        window.location.href = path;
        return true;
    }
    
    if($('location_path').value != 'null'){
        var path = '/'+$('place_type_path').value+'/'+$('location_path').value+'/';
        window.location.href = path;
        return true;
    }
    
}

sfHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);