function togglePurDec(evt) {
evt = (evt) ? evt : event;
var target = (evt.target) ? evt.target : evt.srcElement;
var block = document.getElementById("searchdrop");
if (target.id == "catbutton") {
block.style.display = "inline";
} else {
block.style.display = "none";
}
}
function togglePurDec1(evt) {
evt = (evt) ? evt : event;
var target = (evt.target) ? evt.target : evt.srcElement;
var block = document.getElementById("searchdrop");
if (target.id == "webbutton") {
block.style.display = "none";
} else {
block.style.display = "inline";
}
}