The sample code for basic validation for textbox,radio button and drop down
the code is
<html> <script type="text/javascript"> function validate() { var nam = document.getElementById("name").value; var pas = document.getElementById("pas").value; var rad = document.getElementById("rad"); var sele = document.getElementById("sel").value; if(nam =='') { alert("Please enter name"); return false; } if(pas == '') { alert("Please enter password"); return false; } if(!rad.checked) { alert('not checked'); return false; } if(sele == '') { alert("Please select"); return false; } } </script> <form onsubmit="return validate()"> <input type="text" id="name" > <input type="password" id="pas" > <input type="radio" id="rad" value="m"> <select id="sel"> <!--<option value="default">Select</option>--> <option value="">Select</option> <option value="book">Book</option> <option value="pen">Pen</option> <option value="box">Box</option> </select> <input type="submit" value="save"> </form> </html>
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