function open_menu() {
	//alert("abre");
	ResizeMenu(700);
}                                     
		
function close_menu() {
	//alert("fecha");
	ResizeMenu(50);
}

function ResizeSwf(height) {
	var dm = $('left_menu');
    if (dm!=null)
	{
		dm.style.height = (parseInt(height) + 0)+"px";
	}
}