function mostraPost(a){var b=a;var c=$H({'pg':'main','arg':0,'start':b}).toQueryString();new Ajax.Updater({success:'post_'+b},'ajax/mostrapost.php',{postBody:c,onLoading:function(){new Effect.Opacity('post_'+b,{duration:0.2,from:1,to:0.2,queue:'front'})},onComplete:function(){new Effect.Appear('post_'+b,{duration:0.5,queue:'end'})}})}