function chg_button(titlename, onoff) 
{
		document[titlename].src = "images/button_" + titlename + "_" + onoff + ".gif";
}

function open_window (page) {

date = new Date();
counter = Math.floor((date.getSeconds()/60)*100);

	new_window = window.open (page,"a" + counter + "a","width=780,height=450,toolbar=no,location=no,scrollbars=yes,directories=no,menubar=no,resizable=yes");
}

function open_photo (image_path) {

date = new Date();
counter = Math.floor((date.getSeconds()/60)*100);

	new_window = window.open ("photo_enlarge.asp?path="+image_path,"a" + counter + "a","width=660,height=680,toolbar=no,location=no,scrollbars=no,directories=no,menubar=no,resizable=no");
}