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Rounding and Truncating

        I am looking for a neat little JS function to accept a decimal as
input and return a string with the dollar value of the number, rounded to
the nearest penny.  Soo far I have a very rudimentary (non-working) version:

function dollar_it (input) {
	var holder = "";
	anyText = input;
	var i = anyText.indexOf(".");
	i += 2;
	for( var x = 0; x <= i; x++ )
		holder += anyText.charAt(x);

        If anyone has any ideas/suggestion, please let me know.

                                        Steve Weinberger