function showlegend(id)
{
	var x = navigator;
	var n = x.appName;
	var d = "table-row";
	if(n=="Microsoft Internet Explorer")
	{
		d = "block";
	}
	else
	{
		d="table-row";
	}
	

//alert(n+"-"+d);
	
if(document.getElementById(id).style.display == "none") document.getElementById(id).style.display = d;
else document.getElementById(id).style.display = "none";


}