function setCheckBox(obj) {
	var box = obj;
	box.src = (box.src.indexOf('on')!=-1)?box.src.replace('on', 'off'):box.src.replace('off', 'on');
}
function unsetCheckBox(obj) {
	var box = obj;
	if(box.src.indexOf('on')!=-1) {
		box.src = box.src.replace('on', 'off');
	}
}
function showMonthsDropdown(obj) {
	var dropdown = $(obj);
	dropdown.style.display = (dropdown.style.display=='none'?'block':'none');
}
function changeImg(obj, newImage) {
	$(obj).src = newImage;
}
// Submit form
function submitForm(action, form) {
	document.forms[form].action = action;
	document.forms[form].submit();
}

// Check enter button
function pressEnter(formid, e) {
	var keycode;

	if(window.event) {
		keycode = window.event.keyCode;
	} else if (e) {
		keycode = e.which;
	} else {
		return false;
	}
	
	if (keycode == 13) {
		return true;
	} else {
		return false;
	}
}