function color_dis(){
        if (document.sel_cab.ton.value != "all") {document.sel_cab.color.options[0].selected="selected";document.sel_cab.color.disabled="disabled";}
        else {document.sel_cab.color.disabled="";}
        }
        function ton_dis(){
        if (document.sel_cab.color.value != "all") {document.sel_cab.ton.options[0].selected="selected";document.sel_cab.ton.disabled="disabled";}
        else {document.sel_cab.ton.disabled="";}
        }