// JavaScript Document


// JavaScript Document
function getheight ( container )
{
	if( container.scrollHeight )
   	   containerdivheight = container.scrollHeight; 
	
	if ( container.clientHeight )
	  containerdiv2height = container.clientHeight;
	else if( container.offsetHeight )
   	   containerdiv2height = container.offsetHeight; 
	
	if ( containerdiv2height > containerdivheight)
		return containerdiv2height;
	else
		return containerdivheight;
}


function resize ( column, size )
{
	column.style.height = size + 'px';
}


function resizeColumns() {
	
    var cont = document.getElementsByTagName ('html')[0];
	var contHeight = getheight ( cont );
	
	var cm = $E ( 'middle' );
	var cmHeight = getheight ( cm );
	
	if( cmHeight < contHeight - 308 )
	{
		resize ( $E('middle'),contHeight - 308);	
		
	}
}

window.onresize = resizeColumns;