function setSearchField(field,val_elem,arr_elem){
	var cur_f, hid_f;
	//this.className = 'active';
	hid_f = document.getElementById(val_elem);
	if (hid_f) {
		cur_f = document.getElementById(arr_elem+hid_f.value);
		if (cur_f) cur_f.className = '';
		hid_f.value = field;
		cur_f = document.getElementById(arr_elem+field);
		if (cur_f) cur_f.className = 'active';
	}
	return false;
}