<!--

		layerRef = ""
		styleRef = ""
		if (navigator.appName == "Netscape")
			{
			layerRef = ".layers"
			styleRef = ""
			}
		else
			{
			layerRef = ".all"
			styleRef = ".style"
			} 


function visibile(sPar)

	{	
	 for(i=1;i<21;i++)
	{ 
		yLay = 'reg'+i;

		Desc = 'desc'+i;
		
	    eval( "document" + layerRef + "['"+Desc+"']" + styleRef + ".visibility = 'hidden'")

	}    

	xLay = 'reg'+sPar;
	Desc = 'desc'+sPar;

	eval( "document" + layerRef + "['"+Desc+"']" + styleRef + ".visibility = 'visible'") 
	
	} 

function nasdiv(sPar)
{	xLay = 'desc'+sPar
	   eval( "document" + layerRef + "['"+xLay+"']" + styleRef + ".visibility = 'hidden'")


}




//-->