function openWindow(anchor, options) {

	var args = '';

		if (typeof(options) == 'undefined') { var options = new Object(); }
			if (typeof(options.name) == 'undefined') { options.name = 'win' + Math.round(Math.random()*100000); }

				if (typeof(options.height) != 'undefined' && typeof(options.fullscreen) == 'undefined') {
						args += "height=" + options.height + ",";
							}

								if (typeof(options.width) != 'undefined' && typeof(options.fullscreen) == 'undefined') {
										args += "width=" + options.width + ",";
											}

												if (typeof(options.fullscreen) != 'undefined') {
														args += "width=" + screen.availWidth + ",";
																args += "height=" + screen.availHeight + ",";
																	}

																		if (typeof(options.center) == 'undefined') {
																				options.x = 0;
																						options.y = 0;
																								args += "screenx=" + options.x + ",";
																										args += "screeny=" + options.y + ",";
																												args += "left=" + options.x + ",";
																														args += "top=" + options.y + ",";
																															}

																																if (typeof(options.center) != 'undefined' && typeof(options.fullscreen) == 'undefined') {
																																		options.y=Math.floor((screen.availHeight-(options.height || screen.height))/2)-(screen.height-screen.availHeight);
																																				options.x=Math.floor((screen.availWidth-(options.width || screen.width))/2)-(screen.width-screen.availWidth);
																																						args += "screenx=" + options.x + ",";
																																								args += "screeny=" + options.y + ",";
																																										args += "left=" + options.x + ",";
																																												args += "top=" + options.y + ",";
																																													}

																																														if (typeof(options.scrollbars) != 'undefined') { args += "scrollbars=1,"; }
																																															if (typeof(options.menubar) != 'undefined') { args += "menubar=1,"; }
																																																if (typeof(options.locationbar) != 'undefined') { args += "location=1,"; }
																																																	if (typeof(options.resizable) != 'undefined') { args += "resizable=1,"; }

																																																		var win = window.open(anchor, options.name, args);
																																																			return false;

																																																			}