function isRadioSelected(camporadio){if(camporadio.checked)return true;for(i =0;i <camporadio.length;i++){if(camporadio[i].checked)return true;}return false;}var ERR_TIME_FORMAT =-1;var ERR_TIME_HH =-2;var ERR_TIME_MM =-3;function checkTime(testo){posizioni =new Array(0,1,3,4);for(i =0;i <4;i++){if(testo.charCodeAt(posizioni[i])<"0".charCodeAt(0)|| testo.charCodeAt(posizioni[i])>"9".charCodeAt(0))return ERR_TIME_FORMAT;}hh =(testo.charCodeAt(0)-"0".charCodeAt(0))* 10 +(testo.charCodeAt(1)-"0".charCodeAt(0));sep =testo.substr(2,1);mm =(testo.charCodeAt(3)-"0".charCodeAt(0))* 10 +(testo.charCodeAt(4)-"0".charCodeAt(0));if(sep !=':')return ERR_TIME_FORMAT;if(hh <0 || hh >23)return ERR_TIME_HH;if(mm <0 || mm >59)return ERR_TIME_MM;return 0;}function compareTime(timefrom,timeto){if(checkTime(timefrom)!=0)return false;if(checkTime(timeto)!=0)return false;hhf =(timefrom.charCodeAt(0)-"0".charCodeAt(0))* 10 +(timefrom.charCodeAt(1)-"0".charCodeAt(0));mmf =(timefrom.charCodeAt(3)-"0".charCodeAt(0))* 10 +(timefrom.charCodeAt(4)-"0".charCodeAt(0));hht =(timeto.charCodeAt(0)-"0".charCodeAt(0))* 10 +(timeto.charCodeAt(1)-"0".charCodeAt(0));mmt =(timeto.charCodeAt(3)-"0".charCodeAt(0))* 10 +(timeto.charCodeAt(4)-"0".charCodeAt(0));if(hhf <hht)return true;if(hhf >hht)return false;if(mmf <mmt)return true;if(mmf >mmt)return false;return true;}