var DISABLED_COLOR = "#CCCCCC";
var ENABLED_COLOR = "#FFFFFF";

var ie = document.all;

//	SELECT
function mySelect(form, id) {
	this.select = document.forms[form][id];

	this.clear = mySelect_clear;
	this.add = mySelect_add;
	this.insert = mySelect_insert;
	this.selected = mySelect_selected;
	this.selectedIndex = mySelect_selectedIndex;
	this.length = mySelect_length;
	this.enable = mySelect_enable;
	this.remove = mySelect_remove;
	this.options = mySelect_options;
	this.selectByValue = mySelect_selectByValue;
	this.setValue = mySelect_setValue;
	this.multiSelected = mySelect_multiSelected;
}

function mySelect_clear() {
	this.select.options.length = 0;
}

function mySelect_add(text, value) {
	var idx = this.select.options.length;
	this.select.options.length++;
	this.select.options[idx].value = value;
	this.select.options[idx].text = text;

	return this.select.options[idx];
}

function mySelect_insert(text, value, position)
{
	this.select.options.length++;
	
	for(i=position+1; i<this.select.options.length; i++)
	{
		this.select.options[i].value = this.select.options[i-1].value;
		this.select.options[i].text = this.select.options[i-1].text;
	}
	
	this.select.options[position].value = value;
	this.select.options[position].text = text;
}

function mySelect_selected() {
    var idx = this.select.options.selectedIndex;

	return idx>-1 ? this.select.options[idx].value : '';
}

function mySelect_selectedIndex(idx) {
    if(idx != null)
    	this.select.options.selectedIndex = idx;

	return this.select.options.selectedIndex;
}

function mySelect_length() {
	return this.select.options.length;
}

function mySelect_enable(bEnable) {
    if(ie) {
		this.select.style.backgroundColor = bEnable ? ENABLED_COLOR : DISABLED_COLOR;
	}	
	this.select.disabled = !bEnable;
}

function mySelect_remove(idx) {
	var selectedIndex = this.select.options.selectedIndex;

	if(selectedIndex>idx) {
		this.select.options.selectedIndex = selectedIndex-1;
	}
	
	var len = this.select.options.length;
	var itm = 0;
	for(var i=0;i<len;i++) {
	    if(i!=idx) {
			this.select.options[itm].value = this.select.options[i].value;
			this.select.options[itm].text = this.select.options[i].text;
			itm++;
		}	
	}
	if(itm<len) {
		this.select.options.length = len-1;
	}
}

function mySelect_options(idx) {
	return this.select.options[idx];
}

function mySelect_selectByValue(val) {
	for(var i=0;i<this.select.options.length;i++) {
		if(this.select.options[i].value==val) {
			this.select.selectedIndex = i;
			return i;
		}
	}
	return -1;
}

function mySelect_setValue(Value) {
	this.select.Value = Value;
}

function mySelect_multiSelected() {
    var selection = [];
	for(var i=0;i<this.select.options.length;i++) {
	    var option = this.select.options[i];
		if( option.selected )
			push( selection, option.value );
	}
	return selection;
}

function myInput(form, id) {
	this.input = document.forms[form][id];

	this.enable = myInput_enable;
	this.setValue = myInput_setValue;
	this.getValue = myInput_getValue;
	this.getChecked = myInput_getChecked;
	this.setChecked = myInput_setChecked;
}

function myInput_enable(bEnable) {
    if(ie) {
		this.input.style.backgroundColor = bEnable ? ENABLED_COLOR : DISABLED_COLOR;
	}	
	this.input.disabled = !bEnable;
}

function myInput_setValue(text) {
	this.input.value = text;
}

function myInput_getValue() {
	return this.input.value;
}

function myInput_getChecked() {
	return this.input.checked;
}

function myInput_setChecked(check) {
	this.input.checked = check;
}