function show(num) 
{
	 // hide the other layers
	out();
	
										
	if (document.all) {
			document.all["h"+num].style.visibility="visible"
			
			}
 	else if (document.layers) {
			document.layers["h"+num].visibility="visible"
			//eval("document.layers.h"+num+".visibility = 'visible'");
			}
}

 //***************hide all the layers*******************************/
	function out()
	{
		if (document.all) {
			for (i=1;i<4;i++){
			showlayer =eval("document.all.h"+i+".style")
			showlayer.visibility	 = 'hidden'}
		}
	     else if (document.layers) {
		 for (i=1;i<4;i++)
		 eval("document.layers.h"+i+".visibility ='hidden'");
		}
	
}