function input_cat() {
	var div1 = document.getElementById("search2");
    div1.className = "block";
	var div2 = document.getElementById("search");
    div2.className = "none";
}

function input_site() {
	var div3 = document.getElementById("search");
    div3.className = "block";
	var div4 = document.getElementById("search2");
    div4.className = "none";
}