function getObject(strName) {
	var myobject
	if(document.all) {
		myobject = document.all[strName];
	}
	else if(document.getElementById) {
		myobject = document.getElementById(strName);
	}
	return myobject;
}

function getLocalizedDateObject(existingDate, newtimezone, timezone) {
	var timePattern = /(\d\d?)\/(\d\d?)\/(\d\d\d\d) (\d\d?):(\d\d) *([ap]?\.?m?\.?) *(e?t?)/i;
	var timearr = existingDate.match(timePattern);
	var month, day, year, hour, mins, ampm = "", tz = "";

	if (timearr.length == 8) { tz  = timearr[7]; ampm = timearr[6]; }
	if (timearr.length == 7) { tz  = timearr[6]; ampm = ""; }
	if (timearr.length >= 6) mins  = timearr[5];
	if (timearr.length >= 5) hour  = timearr[4];
	if (timearr.length >= 4) year  = timearr[3];
	if (timearr.length >= 3) day   = timearr[2];
	if (timearr.length >= 2) month = timearr[1];
	var cleanampm = ampm.replace(/\./g,"");
	
	var mydate = new Date();
//	var mytime = ((mydate.getMonth()+1)+"/"+mydate.getDate()+"/"+mydate.getFullYear()+" "+hour+":"+mins+" "+cleanampm).toUpperCase();
	var mytime = (month+"/"+day+"/"+year+" "+hour+":"+mins+" "+cleanampm).toUpperCase();
//alert(mytime);
//	mydate.setTime(Date.parse(mytime+" "+timezone));
	mydate.setTime(Date.parse(mytime));
	mydate = adjustDateForLocalTimezone(mydate, newtimezone, timezone);
//alert(mydate.toString());

	return mydate;
}

function localizeTime(existingTime, newtimezone, timezone) {
	var timePattern = /(\d\d?):(\d\d) *([ap]?\.?m?\.?) *(e?t?)/i;
	var timearr = existingTime.match(timePattern);
	var hour, mins, ampm = "", tz = "";

	if (timearr.length == 5) { tz = timearr[4]; ampm = timearr[3]; }
	if (timearr.length == 4) { tz = timearr[3]; ampm = ""; }
	if (timearr.length >= 3) mins = timearr[2];
	if (timearr.length >= 2) hour = timearr[1];
	var cleanampm = ampm.replace(/\./g,"");
	
	var mydate = new Date();
	var mytime = ((mydate.getMonth()+1)+"/"+mydate.getDate()+"/"+mydate.getFullYear()+" "+hour+":"+mins+" "+cleanampm).toUpperCase();
//alert(mytime);
//	mydate.setTime(Date.parse(mytime+" "+timezone));
	mydate.setTime(Date.parse(mytime));
	mydate = adjustDateForLocalTimezone(mydate, newtimezone, timezone);
//alert(mydate.toString());
	
	if (ampm == "p.m.") ampm = "a.m.";
	else if (ampm == "P.M.") ampm = "A.M.";
	else if (ampm == "pm") ampm = "am";
	else if (ampm == "PM") ampm = "AM";
	if (ampm != "") ampm = " "+ampm;
	if (tz != "") tz = " TZ";
	
	if (ampm != "")
		return formatDate(mydate, "HH:MI"+ampm+tz, newtimezone);
	else
		return formatDate(mydate, "HH24:MI"+tz, newtimezone);
}


function zeroPad(target_string, desired_width) {
	var pad_string = "";
	target_string = ""+target_string;
	for (var x = 0; x < desired_width - target_string.length; x++)
		pad_string += "0";
	return pad_string+target_string;
}
function formatDate(dDate, sPattern, newtimezone) {
	if (sPattern.indexOf("MM") >= 0)
		sPattern = sPattern.replace(/MM/,dDate.getMonth()+1);
	if (sPattern.indexOf("YYYY") >= 0)
		sPattern = sPattern.replace(/YYYY/,dDate.getFullYear());
	if (sPattern.indexOf("DD") >= 0)
		sPattern = sPattern.replace(/DD/,zeroPad(dDate.getDate(),2));
	if (sPattern.indexOf("DAY") >= 0)
		sPattern = sPattern.replace(/DAY/,dayNames[dDate.getDay()]);
	if (sPattern.indexOf("HH24") >= 0)
		sPattern = sPattern.replace(/HH24/,dDate.getHours());
	if (sPattern.indexOf("HH") >= 0)
		sPattern = sPattern.replace(/HH/,dDate.getHours()%12 == 0 ? 12 : dDate.getHours()%12);
	if (sPattern.indexOf("MI") >= 0)
		sPattern = sPattern.replace(/MI/,zeroPad(dDate.getMinutes(),2));
	if (sPattern.indexOf("AM") >= 0)
		sPattern = sPattern.replace(/AM/,dDate.getHours() >= 12 ? "PM" : "AM");
	if (sPattern.indexOf("am") >= 0)
		sPattern = sPattern.replace(/am/,dDate.getHours() >= 12 ? "pm" : "am");
	if (sPattern.indexOf("A.M.") >= 0)
		sPattern = sPattern.replace(/A.M./,dDate.getHours() >= 12 ? "P.M." : "A.M.");
	if (sPattern.indexOf("a.m.") >= 0)
		sPattern = sPattern.replace(/a.m./,dDate.getHours() >= 12 ? "p.m." : "a.m.");
	if (sPattern.indexOf("TZ") >= 0) {
		if (newtimezone == null) {
			var timezone = "";
	//alert(dDate.getTimezoneOffset());
			switch(dDate.getTimezoneOffset()) {
				case -330: timezone = "IST"; break;
				case -120: timezone = "CET"; break;
				case  -60: timezone = "GMT"; break;
				case  240: timezone = "ET"; break;
				case  300: timezone = "CT"; break;
				case  360: timezone = "MT"; break;
				case  420: timezone = "PT"; break;
			}
	//		var timezoneOffset = -1*(dDate.getTimezoneOffset()*100/60);
	//		sPattern = sPattern.replace(/TZ/, "GMT"+(timezoneOffset > 0 ? "+" : "-")+zeroPad(Math.abs(timezoneOffset),4));
			sPattern = sPattern.replace(/TZ/, timezone);
		}
		else
			sPattern = sPattern.replace(/TZ/, newtimezone);
	}
	return sPattern;
}

//adjust a date to match the local time, input string is understood to be Eastern
function adjustDateForLocalTimezone(event_date, newtimezone, timezone) {
//	alert(event_date.toString()+", "+newtimezone+", "+timezone);
	
	if ((newtimezone != null) && (newtimezone != ""))
		event_date.setTime( event_date.getTime() - (getTimezoneOffsetHelper(timezone) - getTimezoneOffsetHelper(newtimezone))*60*1000 );
	else
		event_date.setTime( event_date.getTime() - (event_date.getTimezoneOffset() + getTimezoneOffsetHelper(timezone))*60*1000 );
	
//	alert(event_date.toString());
	return event_date;
}


//FIXME: this only gets offsets for EST/CST times
function getTimezoneOffsetHelper(timezone) {
	timezone = timezone.toUpperCase();
	if (timezone == null || timezone == "EST" || timezone == "ET")
		return -240;
	else if (timezone == "CET")
		return  120;
	else if (timezone == "CST" || timezone == "CT")
		return -300;
	else if (timezone == "MST" || timezone == "MT")
		return -360;
	else if (timezone == "PST" || timezone == "PT")
		return -420;
}


/* based on code from http://www.kryogenix.org/code/browser/searchhi/ */

/**
 * usage: node - XML node to search text within
 *        timezone - the timezone of the times that we will find (default EST)
 *        newtimezone - the timezone of the times that we want to end up with (default local browser time)
 */
function findTimes(node, newtimezone, timezone) {
	if (timezone == null)
		timezone = "EST";
	
	// Iterate into this nodes childNodes
	if (node.hasChildNodes) {
		var hi_cn;
		for (hi_cn=0;hi_cn<node.childNodes.length;hi_cn++) {
			findTimes(node.childNodes[hi_cn], newtimezone, timezone);
		}
	}
	
//alert("working on "+node.nodeName+" ("+node.nodeType+"): "+node.nodeValue);
	// And do this node itself
	if (node.nodeType == 3) { // text node
		var timePattern = /(\d\d?:\d\d *[ap]?\.?m?\.?  *et)/i;
		if (node.nodeValue.search(timePattern) >= 0) {
//alert("found a node");
			var pn = node.parentNode;
			var newnodes = new Array();
			if (pn.className != "shsLocalTime") {
				// time has not already been converted!
				var nv = node.nodeValue;
				var timearr = nv.match(timePattern);
				for (var x = 1; x < timearr.length; x++) {
//alert("found "+timearr[x]);
					var oldtime = new RegExp(timearr[x]);
					var newtime = document.createTextNode(localizeTime(timearr[x], newtimezone, timezone));
					var newtimespan = document.createElement("span");
					newtimespan.className = "shsLocalTime";
					newtimespan.appendChild(newtime);

					ni = nv.indexOf(timearr[x]);
					if (ni > 0) {
						var before = document.createTextNode(nv.substr(0,ni));
						newnodes[newnodes.length] = before;
					}
					nv = nv.substr(ni+timearr[x].length);
					newnodes[newnodes.length] = newtimespan;
				}
				if (nv != "") {
					newnodes[newnodes.length] = document.createTextNode(nv);
				}
				for (x = 0; x < newnodes.length; x++) {
					pn.insertBefore(newnodes[x],node);
				}
				pn.removeChild(node);
			}
//			else alert("time has already been converted!");
		}
	}
}