var str = "-0123";
var str2 = "0123";
var str3 = "0";
var str4 = "323"; var reg = /^-?([1-9]\d+|\d)$/;
alert(reg.test(str));
alert(reg.test(str2));
alert(reg.test(str3));
alert(reg.test(str4));
var str2 = "0123";
var str3 = "0";
var str4 = "323"; var reg = /^-?([1-9]\d+|\d)$/;
alert(reg.test(str));
alert(reg.test(str2));
alert(reg.test(str3));
alert(reg.test(str4));
return newPar.test(str);