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Currency Format
Adds a dollar sign and commas in the proper places to convert a number into its proper U.S. currency format. Occurs when the user clicks the button or when they finish entering the money amount (and click into the next field).
Enter a number then click the button:
or enter a number and click another field:
Insert into <HEAD>
<SCRIPT LANGUAGE="JavaScript"> <!-- Begin function checkNum(data) { // checks if all characters var valid = "0123456789."; // are valid numbers or a "." var ok = 1; var checktemp; for (var i=0; i<data.length; i++) { checktemp = "" + data.substring(i, i+1); if (valid.indexOf(checktemp) == "-1") return 0; } return 1; } function dollarAmount(form, field) { // idea by David Turley Num = "" + eval("document." + form + "." + field + ".value"); dec = Num.indexOf("."); end = ((dec > -1) ? "" + Num.substring(dec,Num.length) : ".00"); Num = "" + parseInt(Num); var temp1 = ""; var temp2 = ""; if (checkNum(Num) == 0) { alert("This does not appear to be a valid number. Please try again."); } else { if (end.length == 2) end += "0"; if (end.length == 1) end += "00"; if (end == "") end += ".00"; var count = 0; for (var k = Num.length-1; k >= 0; k--) { var oneChar = Num.charAt(k); if (count == 3) { temp1 += ","; temp1 += oneChar; count = 1; continue; } else { temp1 += oneChar; count ++; } } for (var k = temp1.length-1; k >= 0; k--) { var oneChar = temp1.charAt(k); temp2 += oneChar; } temp2 = "$" + temp2 + end; eval("document." + form + "." + field + ".value = '" + temp2 + "';"); } } // End --> </script>
Insert into <BODY>
<center> <form name=commaform> Enter a number then click the button: <input type=text name=input size=10 value="1000434.23"> <input type=button value="Convert" onclick="dollarAmount(this.form.name, 'input')"> <br><br> or enter a number and click another field: <input type=text name=input2 size=10 value="1000434.23" onBlur="dollarAmount(this.form.name, this.name)"> </form>
Other Options