Iframe 4shared invisible chrome and ie9
The following code is not being visible in the browser chrome and IE9 seems not to open or invisible generated by this code and playlist on 4shared
<iframe marginWidth=0 marginHeight=0 frameborder=0 border=0 cellspacing=0 src=http://www.4shared.com/pl/Dd1KpM8G/Need_For_Speed_-_The_Run.htmlscrolling=no width=320 height=260></iframe>
As @dop-trois said the values should be in quotes.
<iframe marginWidth="0" marginHeight="0" frameborder="0" border="0" cellspacing="0" src="http://www.4shared.com/pl/Dd1KpM8G/Need_For_Speed_-_The_Run.html" scrolling="no" width="320" height="260"></iframe>
Remember that some websites prevent loading their pages in iFrames with JS similar to below so if you try loading a site like that (twitter for example) it won't show anything or redirect your whole page to their site. Just be careful of that.
if(top.frames.length > 0) top.location.href=self.location;