function over(element){
   document.getElementById(element).style.display = 'block';
}

function out(element){
	if(document.getElementById(element)) document.getElementById(element).style.display = 'none';
}
function set_black_bar_height()
{
	var height_left_col = document.getElementById('leftCol').offsetHeight;
	var height_right_col = document.getElementById('rightCol').offsetHeight;
	var height_right_column = 0;
	var check = 0;
	if (height_left_col <= height_right_col)
	{
		height_right_column = height_right_col + 95;
	}
	else
	{
		check = height_left_col - height_right_col;
		if(check < 95 )
		{
			height_right_column = height_right_col + check;
		}	
		else
		{
			height_right_column = height_left_col;
		}
	}
	if(height_right_col <= 453)
	{
		height_right_column = 525;
	}
	
	
	document.getElementById('rightCol').style.height = height_right_column + "px";
}