jQuery.fn.extend({number_format:function(numero,params)
{var sDefaults={numberOfDecimals:2,decimalSeparator:',',thousandSeparator:'.',symbol:''}
var options=jQuery.extend(sDefaults,params);var number=numero;var decimals=options.numberOfDecimals;var dec_point=options.decimalSeparator;var thousands_sep=options.thousandSeparator;var currencySymbol=options.symbol;var exponent="";var numberstr=number.toString();var eindex=numberstr.indexOf("e");if(eindex>-1)
{exponent=numberstr.substring(eindex);number=parseFloat(numberstr.substring(0,eindex));}
if(decimals!=null)
{var temp=Math.pow(10,decimals);number=Math.round(number*temp)/temp;}
var sign=number<0?"-":"";var integer=(number>0?Math.floor(number):Math.abs(Math.ceil(number))).toString();var fractional=number.toString().substring(integer.length+sign.length);dec_point=dec_point!=null?dec_point:".";fractional=decimals!=null&&decimals>0||fractional.length>1?(dec_point+fractional.substring(1)):"";if(decimals!=null&&decimals>0)
{for(i=fractional.length-1,z=decimals;i<z;++i)
fractional+="0";}
thousands_sep=(thousands_sep!=dec_point||fractional.length==0)?thousands_sep:null;if(thousands_sep!=null&&thousands_sep!="")
{for(i=integer.length-3;i>0;i-=3)
integer=integer.substring(0,i)+thousands_sep+integer.substring(i);}
if(options.symbol=='')
{return sign+integer+fractional+exponent;}
else
{return currencySymbol+' '+sign+integer+fractional+exponent;}}});