function reaction(obsah)
{
document.getElementById("obsah").value = obsah;
}
function show(j,co){
		var j,co	

			for(i=0;i<7;i++)
					{
					document.getElementById(co+i).style.display="none";
          	document.getElementById("most"+co+i).setAttribute("class", "unselected");
					}
			
					document.getElementById(co+j).style.display="block";

					document.getElementById("most"+co+j).setAttribute("class", "selected");
					
					}