First have a button with type submit as

<INPUT TYPE="SUBMIT" VALUE="SUBMIT"/> 

In your FORM tag, include the onSubmit() event as

<FORM  ACTION="/path/to/server/side/script" NAME="testform" onSubmit="return validate()" > 

The validate() function should return true if the form validation goes through or a false if the validation fails. e.g.

function validate(){ if(...){//valid return true; }else{//not valid return false; } } 

EDIT: Always specify the button type. If not specified, in IE it defaults to "button" while in Chrome and Firefox it defaults to "submit".

<form action="my/script" onsubmit="return ValidateFunc();"> <button type="submit"> <img src="image/do_this_with_input_tag.png"> Some Text </button> </form> 

And in future, include more details in your question if you want proper answers.

First have a button with type submit as

<input type="submit" value="submit" /> 

In your form tag, include the onsubmit() event as

<form action="/path/to/server/side/script" name="testform" onsubmit="return validate()" > 

The validate() function should return true if the form validation goes through or a false if the validation fails. e.g.

function validate(){ if(...){//valid return true; }else{//not valid return false; } } 

EDIT: Always specify the button type. If not specified, in IE it defaults to "button" while in Chrome and Firefox it defaults to "submit".

<form action="my/script" onsubmit="return ValidateFunc();"> <button type="submit"> <img src="image/do_this_with_input_tag.png"> Some Text </button> </form> 

And in future, include more details in your question if you want proper answers.

First have a button with type submit as

<INPUT TYPE="SUBMIT" VALUE="SUBMIT"/> 

In your FORM tag, include the onSubmit() event as

<FORM ACTION="/path/to/server/side/script" NAME="testform" onSubmit="return validate()" > 

The validate() function should return true if the form validation goes through or a false if the validation fails. e.g.

function validate(){ if(...){//valid return true; }else{//not valid return false; } } 

First have a button with type submit as

<INPUT TYPE="SUBMIT" VALUE="SUBMIT"/> 

In your FORM tag, include the onSubmit() event as

<FORM ACTION="/path/to/server/side/script" NAME="testform" onSubmit="return validate()" > 

The validate() function should return true if the form validation goes through or a false if the validation fails. e.g.

function validate(){ if(...){//valid return true; }else{//not valid return false; } } 

EDIT: Always specify the button type. If not specified, in IE it defaults to "button" while in Chrome and Firefox it defaults to "submit".

<form action="my/script" onsubmit="return ValidateFunc();"> <button type="submit"> <img src="image/do_this_with_input_tag.png"> Some Text </button> </form> 

And in future, include more details in your question if you want proper answers.