function toggle(elem1){
	var div1 = document.getElementById(elem1);
	var sitecontent = document.getElementById("sitecontent");
	var button_min = document.getElementById("button_min");
	var button_max = document.getElementById("button_max");

	if (div1.style.display == 'block') {
		div1.style.display = 'none';
		sitecontent.style.height = 'auto';
		sitecontent.style.filter = 'alpha(opacity=40)';
		sitecontent.style.opacity = '0.40';
		button_min.style.display = 'none';
		button_max.style.display = 'block';
	} else {
		div1.style.display = 'block';
		sitecontent.style.height = '420px';
		sitecontent.style.filter = 'alpha(opacity=90)';
		sitecontent.style.opacity = '1';
		button_min.style.display = 'block';
		button_max.style.display = 'none';
	}
}