$(function(){

	$("#main_nav li").hover(function(){
		$(this).addClass("hover");
	}, function(){
		$(this).removeClass("hover");
	});

});

function menuHideFields(onoff) {
	if( onoff == 1 ) {
		fieldVisibility = 'hidden';
	}
	else {
		fieldVisibility = '';
	}
	var inputs = document.getElementsByTagName('input');
	for (var i = 0; i < inputs.length; i++) {
		inputs[i].style.visibility=fieldVisibility;
	}
	var selects = document.getElementsByTagName('select');
	for (var i = 0; i < selects.length; i++) {
		selects[i].style.visibility=fieldVisibility;
	}
	var textareas = document.getElementsByTagName('textarea');
	for (var i = 0; i < textareas.length; i++) {
		textareas[i].style.visibility=fieldVisibility;
	}
}