input type button vs image

When I use a input type = button with a onclick event it works. When I use a image it does not. What is the difference?

Works
<input type="button" value="Login" onclick="login(this.form)">

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Does Not Work
<input type="image" src="buttons/bt-login.png" onclick="login(this.form)">

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                                <script>
                                function login(myform) {
                                        $.get('login.php',
                                        $(myform).serialize(),
                                        function(php_msg) {
                                          if (php_msg.substring(0,5) == "https") {
                                             $("#login-scr").html('<span class="details-description"><br><font color=green>Login successfull. Loading please wait...</font><br></span>');
                                             setTimeout(function()
                                                {
                                                window.location.replace(php_msg)
                                                }
                                             ,2000);
                                          } else {
                                             $("#login-scr").html(php_msg);
                                          }
                                        });
                                }
                                </script>

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LVL 7
Robert SaylorSenior DeveloperAsked:
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leakim971PluritechnicianCommented:
use : <input type="image" src="buttons/bt-login.png" onclick="login(this.form); return false;">
0

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leakim971PluritechnicianCommented:
or :
<input type="image" src="buttons/bt-login.png" id="but" />

<script>
jQuery(function($) { // same as $(document).ready(function() {
      $("#but").click(function(evt) {
    evt.preventDefault();
    var myform = $(this).closest("form");
    $.get('login.php',
                                        $(myform).serialize(),
                                        function(php_msg) {
                                          if (php_msg.substring(0,5) == "https") {
                                             $("#login-scr").html('<span class="details-description"><br><font color=green>Login successfull. Loading please wait...</font><br></span>');
                                             setTimeout(function()
                                                {
                                                window.location.replace(php_msg)
                                                }
                                             ,2000);
                                          } else {
                                             $("#login-scr").html(php_msg);
                                          }
                                        });
      });
});
</script>

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0
Robert SaylorSenior DeveloperAuthor Commented:
that worked but why do I have to give the return false?
0
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GaryCommented:
input type="image"
is the "same" as
input type="submit"

(no points for this)
0
Robert SaylorSenior DeveloperAuthor Commented:
ah, thanks that makes since to me now :)
0
Robert SaylorSenior DeveloperAuthor Commented:
Thanks guys you saved my CSS designer from having to create button classes lol.
0
GaryCommented:
Ermm I said no points.
0
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