// Popup window, 640 x 480


function open_window(url) {
mywin = window.open(url,"win",'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,width=640,height=480');
}


// Popup window, 800 x 600


function open_bigwindow(url) {
bigwin = window.open(url,"bigwin",'toolbar=0,location=0,directories=0,status=1,menubar=0,scrollbars=1,resizable=1,width=800,height=600');
}

// ||||||||||||||||||||||||||||||||||||||||||||||||||
// Centered pop-up window

function openWindow (url, width, height, toolbar, scroll, center) {
	var name = new Date ();
	name = name.getTime ();
	name = name.toString ();
	toolbar = toolbar ? "yes" : "no";
	scroll = scroll ? "yes" : "no";
	var features = "toolbar="+toolbar+",menubar="+toolbar+",location="+toolbar+",status="+toolbar+",scrollbars="+scroll+",resizable="+scroll;
	if (width) features += ",width="+width;
	if (height) features += ",height="+height;
	if (center) {
		if (width && window.screen.availWidth) {
			var x = Math.round ((window.screen.availWidth - parseInt (width)) / 2);
			features += ",screenX="+x+",left="+x;
		}
		if (height && window.screen.availHeight) {
			var y = Math.round ((window.screen.availHeight - parseInt (height)) / 2);
			features += ",screenY="+y+",top="+y;
		}
	}
	window.open (url, name, features);
}
openCenter = function (url, width, height) {
	openWindow (url, width, height, false, false, true);
}
openCenterChrome = function (url, width, height) {
	openWindow (url, width, height, true, false, true);
}
openCenterScroll = function (url, width, height) {
	openWindow (url, width, height, false, true, true);
}
openCenterChromeScroll = function (url, width, height) {
	openWindow (url, width, height, true, true, true);
}