function ShowMenu()
{
        //num is selected value, menu is the name of the div, max is the number of divs
        var curr_tier = (parseInt(arguments[0]) * 2); //get current tier
	var newShowDiv = parseInt(arguments[1]);
	
        for(j = 1; j <= arguments[curr_tier+1]; j++)
        {
                var menu_div = arguments[curr_tier] + j;
               	if(j == newShowDiv) {
                       	document.getElementById(menu_div).style.display = 'block';
               	} else {
                       	//if not, hide
                       	document.getElementById(menu_div).style.display = 'none';
               	}
        }
        var next_tier = curr_tier + 2;
        for(i = next_tier; i < arguments.length; i = i + 2)
        {
                if(arguments[i+1] != '')
                {
                	for(k = 1; k < parseInt(arguments[i+1]); k++)
                	{
                        	var menu_div2 = arguments[i] + k;
               	        	document.getElementById(menu_div2).style.display = 'none';
               		}
               	}
        }
}