// name - name of the cookie
// value - value of the cookie
// [expires] - expiration date of the cookie (defaults to end of current session)
// [path] - path for which the cookie is valid (defaults to path of calling document)
// [domain] - domain for which the cookie is valid (defaults to domain of calling document)
// [secure] - Boolean value indicating if the cookie transmission requires a secure transmission
// * an argument defaults when it is assigned null as a placeholder
// * a null placeholder is not required for trailing omitted arguments
function setCookie(name, value, expires, path, domain, secure) {
 var curCookie = name + "=" + escape(value) +
     ((expires) ? "; expires=" + expires.toGMTString() : "") +
     ((path) ? "; path=" + path : "") +
     ((domain) ? "; domain=" + domain : "") +
     ((secure) ? "; secure" : "");
 document.cookie = curCookie;
}

// name - name of the desired cookie
// * return string containing value of specified cookie or null if cookie does not exist
function getCookie(name) {
 var dc = document.cookie;
 var prefix = name + "=";
 var begin = dc.indexOf("; " + prefix);
 if (begin == -1) {
   begin = dc.indexOf(prefix);
   if (begin != 0) return null;
 } else
   begin += 2;
 var end = document.cookie.indexOf(";", begin);
 if (end == -1)
   end = dc.length;
 return unescape(dc.substring(begin + prefix.length, end));
}

// name - name of the cookie
// [path] - path of the cookie (must be same as path used to create cookie)
// [domain] - domain of the cookie (must be same as domain used to create cookie)
// * path and domain default if assigned null or omitted if no explicit argument proceeds
function deleteCookie(name, path, domain) {
 if (getCookie(name)) {
   document.cookie = name + "=" + 
    ((path) ? "; path=" + path : "") +
   ((domain) ? "; domain=" + domain : "") +
   "; expires=Thu, 01-Jan-70 00:00:01 GMT";
 }
}

// date - any instance of the Date object
// * hand all instances of the Date object to this function for "repairs"
function fixDate(date) {
 var base = new Date(0);
 var skew = base.getTime();
 if (skew > 0)
   date.setTime(date.getTime() - skew);
}

function launchCenter(url, name, height, width, scrollbars, resizable) {
	if (scrollbars!="no"){scrollbars="yes"}
	if (resizable!="no"){resizable="yes"}
	//if (menubar!="yes"){menubar="no"}
	  var str = "scrollbars="+scrollbars+",resizable="+resizable+",";
	  //var str = "scrollbars=yes,resizable=yes,";
	  str += "height=" + height + ",innerHeight=" + height;
	  str += ",width=" + width + ",innerWidth=" + width;
	 // str += ",menubar=" + menubar + "";
	  if (window.screen) {
		var ah = screen.availHeight - 30;
		var aw = screen.availWidth - 10;

		var xc = (aw - width) / 2;
		var yc = (ah - height) / 2;

		str += ",left=" + xc + ",screenX=" + xc;
		str += ",top=" + yc + ",screenY=" + yc;
	  }
	  return window.open(url, name, str);
}