var d=document
var NN=d.layers?true:(window.opera&&!d.createComment)?true:false
var ampm = 'am';
function calculate_time_zone() {
	var rightNow = new Date();
	var jan1 = new Date(rightNow.getFullYear(), 0, 1, 0, 0, 0, 0);  // jan 1st
	var june1 = new Date(rightNow.getFullYear(), 6, 1, 0, 0, 0, 0); // june 1st
	var temp = jan1.toGMTString();
	var jan2 = new Date(temp.substring(0, temp.lastIndexOf(" ")-1));
	temp = june1.toGMTString();
	var june2 = new Date(temp.substring(0, temp.lastIndexOf(" ")-1));
	var std_time_offset = (jan1 - jan2) / (1000 * 60 * 60);
	var daylight_time_offset = (june1 - june2) / (1000 * 60 * 60);
	var dst;
	if (std_time_offset == daylight_time_offset) {
		dst = 0; // daylight savings time is NOT observed
	} else {
		// positive is southern, negative is northern hemisphere
		var hemisphere = std_time_offset - daylight_time_offset;
		if (hemisphere >= 0)
			std_time_offset = daylight_time_offset;
		dst = 1; // daylight savings time is observed
	}
	var i;
	return std_time_offset;
}

function time_period() {
	var dst = 0;
	var rightNow = new Date();
	var jan1 = new Date(rightNow.getFullYear(), 0, 1, 0, 0, 0, 0);  // jan 1st
	var june1 = new Date(rightNow.getFullYear(), 6, 1, 0, 0, 0, 0); // june 1st
	var temp = jan1.toGMTString();
	var jan2 = new Date(temp.substring(0, temp.lastIndexOf(" ")-1));
	temp = june1.toGMTString();
	var june2 = new Date(temp.substring(0, temp.lastIndexOf(" ")-1));
	var std_time_offset = (jan1 - jan2) / (1000 * 60 * 60);
	var daylight_time_offset = (june1 - june2) / (1000 * 60 * 60);
	var dst;
	if (std_time_offset == daylight_time_offset) {
		dst = 0; // daylight savings time is NOT observed
	} else {
		// positive is southern, negative is northern hemisphere
		var hemisphere = std_time_offset - daylight_time_offset;
		if (hemisphere >= 0)
			std_time_offset = daylight_time_offset;
		dst = 1; // daylight savings time is observed
	}
	var i;
	return dst;
}
function showTime(){
var time_type;	
var tp = time_period();
 var tmN=new Date()
var dH =tmN.getUTCHours();
dH=dH.length<2?'0'+dH:dH - 5 + time_period();
if(dH >12) {
		dH=dH-12
		ampm = 'pm'
};
	if (dH <0) {
		dH = dH +12
		if (ampm='pm') ampm ='am';else appm='pm'
	};
if (tp==1) time_type='EDT'; else time_type='EST';
 var dM=''+tmN.getUTCMinutes();dM=dM.length<2?'0'+dM:dM
 var dS=''+tmN.getUTCSeconds();dS=dS.length<2?'0'+dS:dS
 var tmp=dH+':'+dM+':'+dS + ' ' + ampm +' '+ time_type;
 if(NN)d.F.chas.value=tmp;else d.getElementById('tm').innerHTML=tmp
 var t=setTimeout('showTime()',1000)

}