javascript - Browser clearing form data -

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• how prevent buttons submitting forms 13 answers

i have form on website , validating using js. issue have is, after form has failed validation, browser clears data has been inputted user.

i have tried stripping "submit" type value button , submitting form using js. code checks each field individually, keeping count of issues, , should submit if count > 0.

function validateform() {     var errors = 0;     // if test fails errors++      if(errors > 0)     {         alert("please correct following " + errors + " error(s):\n" + errorlist);     return false; // assumed prevent form submitting     }     else     {         document.forms[0].submit();     } } 

the code button is

html <button tabindex = "18" id = "submitform" onclick = "validateform();">submit</button> 

this not restricted ie, occurs on firefox. form being submitted long fields complete regardless of errors.

for <button>, default type submit, set type button if don't want submit.