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Apr 24th, 2014
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  1. function validatenew() {
  2. var name = document.getElementById("name").value;
  3. var pattern = /^[0-9a-zA-Z]+$/;
  4. if (pattern.test(name)) {
  5. alert(name +" has alphanumeric value");
  6. return true;
  7. } else {
  8. alert("Name is not valid.Please input alphanumeric value!");
  9. return false;
  10. }
  11. }
  12. <input type="text" name="name" id="name" maxlength="70" onblur="alphanumeric(document.form1.name)"/>
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