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how to add two text box values?

nirmalsingh
218 100+
how to add two text box values?refer my code below. it is concatinating instead of adding. my code is
Expand|Select|Wrap|Line Numbers
  1. <html>
  2. <head>
  3. <script language="javascript">
  4. function addone()
  5. {
  6. a=document.getElementById("h1").value
  7.  
  8. var b=a+1;
  9. document.getElementById("h1").value=b;
  10.  
  11. }
  12. </script>
  13. </head>
  14. <body>
  15.  
  16. <input type="text" id="h1"/>
  17. <input type="button" value="ADD" onclick="addone()"/>
  18. </body>
  19. </html>
  20.  
Mar 28 '07 #1
1 8881
acoder
16,027 Expert Mod 8TB
Use parseInt:
Expand|Select|Wrap|Line Numbers
  1. var b = parseInt(a)+1;
Mar 28 '07 #2

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