function showform(){
	document.getElementById('searchform_bottom').className = "bttndiv bd2";
	document.searchform.show_advanced_form.value = 1;
	document.getElementById('searchform_advanced').style.display = "block";
	dropdowncontent.slideit("searchform_advanced", "down", {speed: 400} );
}

function hideform(){
	dropdowncontent.slideit("searchform_advanced", "up", {speed: 400, user_function: hideform_done});
	document.searchform.show_advanced_form.value = 0;
}

var hideform_done = function (){
	document.getElementById('searchform_bottom').className = "bttndiv";
}