function switchlayer(Layer_Name)
	{
	var DINO = document.getElementById? 1:0 ;
	var NS = document.layers? 1:0 ;
	var IE = document.all? 1:0 ;
	
	if (DINO)
		{document.getElementById(Layer_Name).style.display = (document.getElementById(Layer_Name).style.display=='inline') ? 'none' : 'inline';}
	else if (NS)
		{document.layers[Layer_Name].display = (document.layers[Layer_Name].display == 'inline') ? 'none' : 'inline';}
	else if (IE)
		{document.all[Layer_Name].style.display = (document.all[Layer_Name].style.display == 'inline') ? 'none' : 'inline';}
	}

function closelayer(Layer_Name)
	{
	var DINO = document.getElementById? 1:0 ;
	var NS = document.layers? 1:0 ;
	var IE = document.all? 1:0 ;
	
	if (DINO)
		{document.getElementById(Layer_Name).style.display= 'none';}
	else if (NS)
		{document.layers[Layer_Name].display='none';}
	else if (IE)
		{document.all[Layer_Name].style.display= 'none';}
	return false;
	}

function closealllayer(max)
	{
	var DINO = document.getElementById? 1:0 ;
	var NS = document.layers? 1:0 ;
	var IE = document.all? 1:0 ;
	
	for(var counter = 1; counter < max; counter++)
		{
	
		if (DINO)
			{document.getElementById(counter).style.display= 'none';}
		else if (NS)
			{document.layers[counter].display='none';}
		else if (IE)
			{document.all[counter].style.display= 'none';}
		}
		
	return false;
	
	}