var estado;
				function getBrowserName(){ 
					return sBrowser; 
				   } 
				function expand()
				{
					estado=1;
					if(sBrowser='ie'){
					document.getElementById("menu_row").style.top=20;	
					}
					document.getElementById("menu_row").style.visibility="visible";
				}
				function expand2()
				{
					estado=1;
					if(sBrowser='ie'){
					document.getElementById("menu_row2").style.top=20;	
					}
					document.getElementById("menu_row2").style.visibility="visible";
				}
				function expand3()
				{
					estado=1;
					if(sBrowser='ie'){
					document.getElementById("menu_row3").style.top=20;	
					}
					document.getElementById("menu_row3").style.visibility="visible";
				}
				function fold()
				{
					if(estado==1){
					 document.getElementById("menu_row").style.visibility="hidden";
					 document.getElementById("menu_row2").style.visibility="hidden";
					 document.getElementById("menu_row3").style.visibility="hidden";
					}
				}