Fix various PHP code bugs found using static analysis (#1489086)

Aleksander Machniak

2013-05-06 187cf5e1cdee87fb1d26599f93202222bb7b8a4b

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.panel_wrapper {height:85px;} 
.panel_wrapper div.current {height:85px;} 
 
/* IE */ 
* html .panel_wrapper {height:100px;} 
* html .panel_wrapper div.current {height:100px;}