/**
  * This method hides the menu on left frame  
  * */
var browser = navigator.appName;

function closeAll() 
{
	if (browser == "Netscape")
	{
			//alert("i am in netscape");
			if (document.layers) 
			{
				//alert("i am in layers");
			document.layers.firstLev.visibility = "hide";
			document.layers.firstLev1.visibility = "hide";
			document.layers.aboutLev.visibility = "hide";
			document.layers.iogoosLev.visibility = "hide";
			document.layers.DimLev.visibility = "hide";
			//document.layers.groupsLev.visibility = "hide";	
			document.layers.inventLev.visibility = "hide";
			}
			else
			{
				//alert("i am in 6");
				var s1 = document.getElementById("firstLev");
				var s2 = document.getElementById("firstLev1");
				var s3 = document.getElementById("aboutLev");
				var s4 = document.getElementById("iogoosLev");
				var s5 = document.getElementById("DimLev");
				//var s5 = document.getElementById("groupsLev");
				var s6 = document.getElementById("inventLev");
								
				s1.style.visibility="hidden";
				s2.style.visibility="hidden";
				s3.style.visibility="hidden";
				s4.style.visibility="hidden";
				s5.style.visibility="hidden";
				//s5.style.visibility="hidden";
				s6.style.visibility="hidden";
				
			}
	}
	
	else
	
	{
	document.all.firstLev.style.visibility = 'hidden';
	document.all.firstLev1.style.visibility = 'hidden';
	document.all.aboutLev.style.visibility = 'hidden';
	document.all.iogoosLev.style.visibility = 'hidden';	
	document.all.DimLev.style.visibility = 'hidden';	
	//document.all.groupsLev.style.visibility = 'hidden';
	document.all.inventLev.style.visibility = 'hidden';
	}
	//alert("i am after closing all");
}

/**
  * This method shows menu on left frame depending on the user selection 
 */

function showArea(idOpen) 
{
		//alert("i am in show area");
	        closeAll();

	if (browser == "Netscape")
	{
		//alert("i am in show netscape");
		if (document.layers) 
		
		{
		  // alert("i am in showarea layers");
		   eval('document.layers.' + idOpen).visibility = "show";
		}
		else
		{
			//alert("i am in showarea ns 6");
			var s=document.getElementById(idOpen)
			s.style.visibility = "visible";
		}
	}
	else
	{
        eval('document.all.' + idOpen).style.visibility = 'visible';
	}
	
}