function setTall() 
{
    var leftHeight = document.getElementById("leftContentMiddle");
    var rightHeight = document.getElementById("mainContentMiddle");
    var biggest = 450;
    var compare = 0;
    
    if(rightHeight.offsetHeight < leftHeight.offsetHeight)
    {
        compare = leftHeight.offsetHeight;
    }
    else
    {
        compare = rightHeight.offsetHeight;
    }
    
    
    if(compare < biggest)
    {
        compare = biggest;
    }
    
    
    if(rightHeight.offsetHeight < compare)
    {
        rightHeight.style.height = compare + 'px';
    }
    
    if(leftHeight.offsetHeight < compare)
    {
        leftHeight.style.height = compare + 'px';
    }
       
}

function setTall2() 
{
    var rightHeight = document.getElementById("mainContentMiddle");
    var biggest = 350;
    if (rightHeight.offsetHeight < biggest)
    {
        rightHeight.style.height = biggest + 'px';
    }    
}