Why does the search button in my jsp code not work?

23:05 05 Oct 2014

Following is the code of my jsp where there are two input fields regNo and studentName.

I want the user to enter only numbers in regNo field. It should not contain any spaces and the length of the digits should be only 12.

I added the check for characters and I added CSS and now my Search button isn't working.


  
  
    
  


          
      
    
      Only numbers are allowed
      
                        
         OR

javascript html css