function popUp(URL) {
	day = new Date();
	id = day.getTime();
	eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=400,height=461,left = 440,top = 281.5');");
}
function listingPopUp() {
	day = new Date();
	id = day.getTime();
	eval("page" + id + " = window.open('/listing.html', '" + id + 
	"', 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=0," +
	"width=410,height=481,left=440,top=281.5');");
}


function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}
function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}
function eraseCookie(name) {
	createCookie(name,"",-1);
}

function showPageMask() {
	if (readCookie('show_mask') == 'no') return;
	
	document.getElementById('page_mask_content').style.display='block';
	document.getElementById('page_mask').style.display='block';
	document.body.style.overflow='hidden';
	createCookie('show_mask', 'no', 1);
}
function hidePageMask() {
	document.getElementById('page_mask').style.display='none';
	document.getElementById('page_mask_content').style.display='none';
	document.body.style.overflow='auto';
}