<input type="text" name="valor"/>
function float2moeda(num) {
x = 0;
if(num<0) {
num = Math.abs(num);
x = 1;
} if(isNaN(num)) num = "0";
cents = Math.floor((num*100+0.5)%100);
num = Math.floor((num*100+0.5)/100).toString();
if(cents < 10) cents = "0" + cents;
for (var i = 0; i < Math.floor((num.length-(1+i))/3); i++)
num = num.substring(0,num.length-(4*i+3))+'.'
+num.substring(num.length-(4*i+3)); ret = num + ',' + cents; if (x == 1) ret = ' - ' + ret;
return ret;
}
AGUARDO..