function regIsDigit(fData)
{
var reg = new RegExp("^[0-9]$");
return (reg.test(fData));
}

function regDataLength(fData)
{
var valLength = fData.length;
var reg = new RegExp("^[\u0391-\uFFE5]$");
var result = 0;
for(i=0; i< valLength; i++)
{
if(reg.test(fData.charAt(i)))
{
result += 2;
}
else
{
result ++;
}
}
return result;
}

function regIsNumber(fData)
{
var reg = new RegExp("^[-]?[0-9]+[\.]?[0-9]+$");
return reg.test(fData)
}

function regIsEmail(fData)
{
var reg = new RegExp("^[0-9a-zA-Z]+@[0-9a-zA-Z]+[\.]{1}[0-9a-zA-Z]+[\.]?[0-9a-zA-Z]+$");
return reg.test(fData);
}

function regIsPhone(fData)
{
var reg = /^(\+86)?(1[0-9]{10})$/;
return reg.test(fData);
}

function isalphanumber(str)
{
var result=str.match(/^[a-zA-Z0-9]+$/);
if(result==null) return false;
return true;
}

function isnumber(str)
{
return !isNaN(str);
}

function isint(str)
{
var result=str.match(/^(-|\+)?\d+$/);
if(result==null) return false;
return true;
}

function isdatetime(str)
{
var result=str.match(/^(\d{4})(-|\/)(\d{1,2})\2(\d{1,2}) (\d{1,2}):(\d{1,2}):(\d{1,2})$/);
if(result==null) return false;
var d= new Date(result[1], result[3]-1, result[4], result[5], result[6], result[7]);
return (d.getFullYear()==result[1]&&(d.getMonth()+1)==result[3]&&d.getDate()==result[4]&&d.getHours()==result[5]&&d.getMinutes()==result[6]&&d.getSeconds()==result[7]);
}