javascript - Convert number from text field to proper USD -


i have script on leaving text field

onblur="fora();"

converts user input number "number + usd" looks unprofessional. script is:

<script type="text/javascript"> function fora() { document.getelementbyid('field1').value =  document.getelementbyid('field2').value +" usd"; } </script>

so converts "12345.75" "12345.75 usd". ughh.

do know how can convert number proper self? 12345.75 $12,345.75

my second, related question in same vain...

onclick="document.getelementbyid('field1').value = (math.round((parsefloat(document.getelementbyid('11091').value,2)*100))/100 + math.round((parsefloat(document.getelementbyid('1254.75').value,2)*100))/100).tofixed(2);"

can value field1 (12345.75) converted "$12,345.75"

thanks in advance.

function fora()  {     document.getelementbyid('field1').value = "$" + addcommas(document.getelementbyid('field2').value) +" usd";  }   function addcommas(nstr) {     nstr += '';     x = nstr.split('.');     x1 = x[0];     x2 = x.length > 1 ? '.' + x[1] : '';     var rgx = /(\d+)(\d{3})/;     while (rgx.test(x1)) {         x1 = x1.replace(rgx, '$1' + ',' + '$2');     }     return x1 + x2; }

check out example at: http://jsfiddle.net/cs67m/1/

the comma script from: http://www.mredkj.com/javascript/nfbasic.html have used before , has worked charm.

here updated example additional functionality requested: http://jsfiddle.net/cs67m/3/

html

number 1<input id="field1" value="$1,230.12"/><br> number 2<input id="field2" value="$1,230.12"/><br> sum<input id="sum" readonly=true/> <button id="submit">add</button>

js

function fora() {   document.getelementbyid('sum').value = "$" + addcommas(getnumericvalue('field1') + getnumericvalue('field2')) +" usd"; }  function addcommas(nstr) {     nstr += '';     x = nstr.split('.');     x1 = x[0];     x2 = x.length > 1 ? '.' + x[1] : '';     var rgx = /(\d+)(\d{3})/;     while (rgx.test(x1)) {         x1 = x1.replace(rgx, '$1' + ',' + '$2');     }     return x1 + x2; }  function getnumericvalue(id) {     return stripalphachars(document.getelementbyid(id).value); } //source: http://www.27seconds.com/kb/article_view.aspx?id=31 function stripalphachars(pstrsource) { var m_strout = new string(pstrsource);     m_strout = m_strout.replace(/[^0-9\\.]/g, '');      return parsefloat(m_strout); }

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