javascript - Change div content - ads bottom / top -

The website is located at the bottom of the advertising source but should be visible at the top.

Ad placeholder:

  & lt; Div id = "300_250_placeholder" & gt; & Lt; / Div & gt;  

Ad Code:

  & lt; Div id = "300_250" & gt; & Lt; Script & gt; AdShow ("300_250"); & Lt; / Script & gt; & Lt; / Div & gt;  

Action: The add code should be "visible" only in placeholder and not in the original div.

Without success, I tried:

  $ (300_250) .append (300_250_placeholder);  

Thank you.

Use it to add your result to the head of div

  $ ("# YourDivId"). Prepaid ("Your Content");