Js control form field code_javascript skills

<select name="s" id="s"> <option value="1">1</option> <option value="2">2</option> <option value="3">3</option> </select>
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js verification is Positive integer

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The code is as follows:

<script> <br> var re = /^[1-9]d*$/; //Intelligent verification of single characters<br>if (!re.test(document.getElementById('group_order').value)){ <br>alert(" Group order must be numeric!"); <br>document.getElementById('group_order').focus(); <br>return false; <br>} <br></script>
if(value < ;0 || value!=parseInt(value) ){
alert("is not a positive integer");
}else{
alert("is a positive integer");
}

JS sending form (method 1): check_input is a js function, but this method will send all the forms in the page

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The code is as follows:

<% form_tag( {:controller=>"transaction",:action=>"check_cid"}, {:name=>"form1",:method=>"post",:multipart=>"true" ,:onsubmit=>”return check_input();”}) do %>
< ;% end %>

JS sending form (method 2): check_original is a js function. This method will send the specified form. Regardless of method 1 or method 2, don’t forget to add return

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The code is as follows:

<%= form_tag({:controller=>" program",:action=>"index"},{:name=>"newform",:method=>"post",:multipart=>"true"}) %>
< %= submit_tag "Add",{:name=>'newgroup',:onclick=>'return check_original();'} %>
<%= form_tag %>

To be continued............