function open_menu(x)
{

	var c;
	var stat;

		stat=eval("document.all.Div1.style.display")

				if(stat=="none")
		{
				
			c=eval("document.all.Div1.style.display=''"); //show

		}
		if(stat=="")
		{
			c=eval("document.all.Div1.style.display='none'");  //hide

		}


}