function zoom(url) {
	pos_left = (screen.width) ? (screen.width-370)/2 : 0;
	pos_top  = (screen.height) ? (screen.height-370)/3 : 0;

	settings = "width=370,height=370,top=" + pos_top + ",left=" + pos_left + ",scrollbars=no,resizable=no";
	win = window.open(url,"zoom",settings)
	win.focus();
}

function mapa(url) {
	pos_left = (screen.width) ? (screen.width-500)/2 : 0;
	pos_top  = (screen.height) ? (screen.height-380)/3 : 0;

	settings = "width=500,height=380,top=" + pos_top + ",left=" + pos_left + ",scrollbars=no,resizable=no";
	win = window.open(url,"zoom",settings)
	win.focus();
}

function gallery(url) {
	pos_left = (screen.width) ? (screen.width-520)/2 : 0;
	pos_top  = (screen.height) ? (screen.height-440)/3 : 0;

	settings = "width=520,height=440,top=" + pos_top + ",left=" + pos_left + ",scrollbars=no,resizable=no";
	win = window.open(url,"gallery",settings)
	win.focus();
}