javascript - Tracking changes in web application -

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javascript - Tracking changes in web application -

i have application in user needs see changes have been made during latest edit. changes mean, changes made in inputs textarea, dropdowns.

i trying implement showing background image on right top , when user clicks background image, popup shown shows difference. using prototype 1.7.0.

my first question be:- 1. best approach implement functionality? 2. can set onclick on background image?

there functions in jquery library believe helpful you. if using prototype, guess there similar functionality may utilize.

i suggest writing code this:

var $input = $('input').add('textarea').add('select'); $input.each(function() { var id = $(this).attr('id'); var value = $(this).val(); var hiddenid = 'hidden' + id; var newhiddeninput = $("<input type='hidden'").val(value).attr('id',hiddenid); $(this).after(newhiddeninput); });

the above code create new hidden input each input, textarea, , select on page. have same value input duplicates. have id equivalent prepending id word 'hidden'.

i don't know if can attach click handler background image. if inputs enclosed within <div>, may able result want attaching click handler div.

in case, should have old values can compare them user's input can prepare summary of difference.

javascript html prototypejs

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