The click() method simulates a click on the submit button. Note that if you have an onClick event handler assigned to this button, it will not be executed.
<html> <head> <script language="JavaScript"> <!-- function submitForm(){ if(document.myForm.myText.value == ""){ alert("Please enter some text first"); }else{ document.myForm.mySubmit.click(); } } --> </script> </head> <body> <form name="myForm"> Please Enter some text and click the link.<br> <input type=TEXT value="" name="myText"> <input type=SUBMIT value="Submit" name="mySubmit"> </form> <br> <a href="javascript:submitForm()">Click here to submit the form</a> </body> </html>