function DigitValidation(entered, min, max, alertbox, datatype)
{
// Checking if the content has a certain number of digits.
// Optional parameters are:
// min --minimum number of digits allowed in the field.
// max --maximum number of digits allowed in the field.
// text --text that will show in an alertbox if content is illegal.
// type --enter "I" if only integers are allowed.
with (entered)
{
checkvalue=parseFloat(value);
if (datatype)
{smalldatatype=datatype.toLowerCase();
if (smalldatatype.charAt(0)=="i")
{checkvalue=parseInt(value); if (value.indexOf(".")!=-1) {checkvalue=checkvalue+1}};
}
if ((parseFloat(min)==min && value.length<min) || (parseFloat(max)==max && value.length>max) || value!=checkvalue)
{if (alertbox!="") {alert(alertbox);} return false;}
else {return true;}
}
}