$(document).ready(function(){ 
      
    $(".corner").corner();  
    
    var el_left = document.getElementById('main_left2'); 
    if (el_left) {
        var height = document.getElementById('carrier').offsetHeight - 475;
        if (el_left.offsetHeight<height) el_left.style.height = height + 'px';
    }   
        
});