number_format.js

Download you own three BR

function number_format(eValue)
{
var intPart = "";
var decPart = "";
if (eValue.indexOf(",")>=0)
{
eValue=eValue.replace(/,/g,"");
}
if (eValue.indexOf(".")>=0)
{
intPart=eValue.split(".")[0];
decPart=eValue.split(".")[1];
}
else
{
intPart = eValue;
}
var num  =  intPart+"";  
    var  re=/(-?\d+)(\d{3})/  
    while(re.test(num)){  
num=num.replace(re,"$1,$2")  
    }  
if (eValue.indexOf(".")>=0)
{
eValue=num + "." + decPart;
}
else
{
eValue=num ;
}
return eValue;
}