function hide(object) {
	if (this.document.getElementById(object).style.display == 'none') {
		this.document.getElementById(object).style.display = 'block';
	} else {
		this.document.getElementById(object).style.display = 'none';
	}
}
function hidea(object) {
	this.document.getElementById(object).style.display = 'none';
}
function showa(object) {
	this.document.getElementById(object).style.display = 'block';
}