<!--
function prepareFormDefault(formname,fc) {
	var thisform = document.forms[formname];
	var fcode_index = 0;
	for (i=0; i<optionArray.length; i++) {
		if (fc==optionArray[i].fcode) {
			fcode_index = i;
			break;
		}
	}
	thisform.fcode.length = 0;
	for (i=0; i < optionArray.length; i++) {
		thisform.fcode[i] = new Option(optionArray[i].csname, optionArray[i].fcode, false, false);
	}
	thisform.fcode[fcode_index].selected = true;
	thisform.setmon.length = 0;
	for (j=0; j < seriesArray[fcode_index].length; j++) {
		setmonValue = seriesArray[fcode_index][j].setmon;
		thisform.setmon[j] = new Option(setmonValue, setmonValue, false, false);
	}
	thisform.strike.length = 0;
	for (k=0; k < seriesArray[fcode_index][0].strike.length; k++) {
		strikeValue = seriesArray[fcode_index][0].strike[k];
		thisform.strike[k] = new Option(strikeValue, strikeValue, false, false);
	}
	thisform.strike[Math.floor(seriesArray[fcode_index][0].strike.length/2)].selected = true;
}
function initForm(formname, code, month, price) {
	var thisform = document.forms[formname];
	var f_index = 0;
	var s_index = 0;
	for (i=0; i<thisform.fcode.length; i++) {
		if (code==thisform.fcode[i].value) {
			thisform.fcode[i].selected = true;
			f_index = i;
			break;
		}
	}
	thisform.setmon.length = 0;
	for (j=0; j<seriesArray[f_index].length; j++) {
		setmonValue = seriesArray[f_index][j].setmon;
		thisform.setmon[j] = new Option(setmonValue, setmonValue, false, false);
		if (month==thisform.setmon[j].value) {
			thisform.setmon[j].selected = true;
			s_index = j;
		}
	}

	thisform.strike.length = 0;
	var strike_index = Math.floor(thisform.strike.length/2);
	for (m=0; m<seriesArray[f_index][s_index].strike.length; m++) {
		strikeValue = seriesArray[f_index][s_index].strike[m];
		thisform.strike[m] = new Option(strikeValue, strikeValue, false, false);
		if (price==thisform.strike[m].value) {
			thisform.strike[m].selected = true;
		}
	}
}
function changeLayer(fcode_select) {
	var id_on  = document.getElementById("idx");
	var id_off = document.getElementById("stk");
	if (fcode_select.options[fcode_select.selectedIndex].value=='TXO') {
		id_on = document.getElementById("idx");
		id_off = document.getElementById("stk");
	} else {
		id_on = document.getElementById("stk");
		id_off = document.getElementById("idx");
	}
	id_on.style.visibility = "visible";
	id_off.style.visibility = "hidden";
}
function changeVern(thisSelect) {
	if (thisSelect.selectedIndex==0) {
		thisSelect.form.vern.disabled = true;
	} else {
		thisSelect.form.vern.disabled = false;
	}
}
function changeSetmon(thisform) {
	var f_index = thisform.fcode.selectedIndex;
	for (i=thisform.setmon.length-1; i>=0; i--) {
		thisform.setmon[i] = null;
	}
	for (i=0; i<seriesArray[f_index].length; i++) {
		thisform.setmon[i] = new Option(seriesArray[f_index][i].setmon, seriesArray[f_index][i].setmon, false, false);
	}
}
function changeStrike(thisform, f_index, s_index) {
	thisform.strike.length = 0;
	for (i=0; i < seriesArray[f_index][s_index].strike.length; i++) {
		strikeValue = seriesArray[f_index][s_index].strike[i];
		thisform.strike[i] = new Option(strikeValue, strikeValue, false, false);
	}
	thisform.strike[Math.floor(seriesArray[f_index][s_index].strike.length/2)].selected = true;
}
// -->