<html> <head> <script language="javascript"> function check(aForm){ if(aForm.testText.value==""){ alert("Text Alanı Boş"); return false; }else{ return true; } } </script> </head> <body> <form action="test.jsp" name="testform" onSubmit="return check(this)"> <input type="text" name="testText" size="10"></input> <input type="submit" value="submit"></input> </form> </body> </html>Dosyayı İndir