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- function validatenew() {
- var name = document.getElementById("name").value;
- var pattern = /^[0-9a-zA-Z]+$/;
- if (pattern.test(name)) {
- alert(name +" has alphanumeric value");
- return true;
- } else {
- alert("Name is not valid.Please input alphanumeric value!");
- return false;
- }
- }
- <input type="text" name="name" id="name" maxlength="70" onblur="alphanumeric(document.form1.name)"/>
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