I want to change combobox when mouse is on it or when its not

in my application i need ... if a user click on combobox it will work as usual like show all the list and when mouse is not on any of item or on combobox...then that combobox should take its default position .... that mean it must compress again

in jquery or javascript..you can post you开发者_StackOverflow中文版r answer ... i just want solution :(

Put this code in your <select> tag:

<select onmouseout="JavaScript: this.blur();">
  ...
</select>