$(document).ready(function() {
var docs = $('.right-column').html();
var nav_items = $('.left-column').html();

if(docs==null && nav_items==null){
	 $('.cnarea').css('width','auto');
 	 $('.cnarea').css('margin','0 20px');
}
else if(docs==null || nav_items==null){
	 $('.cnarea').css('width','735px');
}

   
});