function chbx_click(chbx){
	if(chbx.checked){
		chbx.className="chbx_selected";
	}
	else{
		chbx.className="chbx_normal";
	}
}

function get_select_values(curr_select){
	var for_ret= '';
	for(var i=0; i<curr_select.options.length; i++){
		var curr_option = curr_select.options[i];
		if(curr_option.selected){
			//alert(curr_option.value);
		
			if(for_ret){
				for_ret += '-=-';
			}
		
			for_ret += curr_option.value;			
		}

	}
	
	return for_ret;
}

function join_multi_choise(){
	
	var grad = get_select_values(document.sf_har.f_grad_select);
	var poch = get_select_values(document.sf_har.f_poch_select);
	var ob = get_select_values(document.sf_har.f_ob_select);
	
	document.sf_har.f_grad_type.value = grad;
	document.sf_har.f_poch_type.value = poch;
	document.sf_har.f_ob_type.value = ob;
	
	return true;
}