if(dataType=="int")
{
exp=/^[-+]?d+$/;
if (value.match(exp) == null)
return null;
num = parseInt(value, 10);
return (isNaN(num) ? null : num);
}
else if(dataType =="number")
{
exp=/^[-+]?((d+)|(d+.d+))$/;
if (value.match(exp) == null)
return null;
num = parseFloat(value);
return (isNaN(num) ? null : num);
}
else if(dataType =="date")
{
exp=/^(d{4})([-/]?)(d{1,2})([-/]?)(d{1,2})$/
m = value.match(exp);
if (m == null)
{
exp=/^(d{1,2})([-/]?)(d{1,2})([-/]?)(d{4})$/
m = value.match(exp);
if(m== null)
return null;
year = m[5];
month = m[1];
day =m[3];
}
else
{
year = m[1];
month =m[3];
day = m[5];
}
try
