function setTimezoneStyle() {
	var tzList = document.getElementById("timezone");
	if (tzList) {
		var defaultIndex = tzList.selectedIndex;
		for(var i = 0; i<tzList.length;i++) {
			if(tzList[i].value.indexOf('GMT offset') >= 0) {
				tzList[i].className = "hdr";
				tzList[i].disabled = true;
			}
			if (defaultIndex == 0 && tzList[i].value == "Canada/Eastern") {
				defaultIndex = i;
			}
		}
		if (defaultIndex > 0) {
			tzList.selectedIndex = defaultIndex;
		}
		if (tzList[tzList.selectedIndex].disabled) {
			tzList.selectedIndex = tzList.selectedIndex + 1;
		}
	}
}