// JavaScript Document
function showHide(divtoShow) {
	var expand = document.getElementById(divtoShow);
	if(expand.style.display == "block") {
    		expand.style.display = "none";
  	}
	else {
		document.getElementById("d1").style.display = "none";
		document.getElementById("d2").style.display = "none";
		document.getElementById("d3").style.display = "none";		
		expand.style.display = "block";
	}
}