/*
 * Select object
 */
 
IE = (document.all)    ? 1 : 0;
NS = (document.layers) ? 1 : 0;
 
sfFocus = function() {

	var sfEls = document.getElementsByTagName("INPUT");
	for (var i=0; i<sfEls.length; i++) {
		
		switch(sfEls[i].type)
		{
			case "checkbox"	:
			case "radio"	:
			case "image"	:
			case "butoom"	:
			case "submit"	:
							sfEls[i].onfocus=function() {
								//this.className+=" sffocus";
								this.blur();
							}
							break;
		}
		/*
		sfEls[i].onblur=function() {
			this.className=this.className.replace(new RegExp(" sffocus\\b"), "");
		}
		*/
	}
}
if (IE ) 
{
	if (window.attachEvent) window.attachEvent("onload", sfFocus);
}
else
{
	if (window.addEventListener) window.addEventListener("load", sfFocus, false);
}

// initialize select object.
function init_select(el, value) {
	var obj = (typeof el == 'string' ? document.getElementById(el) : el);
	if(!obj) return;

	for(i = 0; i < obj.options.length; i++) {
		if(obj.options(i).value == value)
			obj.selectedIndex = i;
	}
}

// sort select object.
function select_sort(obj) {
	var htable = new Array();
	var text, value;
	var i;

	// make hash table.
	for(i = 0; i < obj.options.length; i++) {
		text = obj.options[i].text;
		value = obj.options[i].value;
		htable[text] = value;
	}

	// sort hash table.
	var keys = hash_sort(htable);

	// init. select.
	for(i = obj.options.length - 1; i >= 0; i--)
		obj.options[i] = null;

	for(i = 0; i < keys.length; i++)
		obj.options[i] = new Option(keys[i], htable[keys[i]]);
}

function hash_sort(htable, reverse) {
	var keys = new Array();

	// get key array from hash table.
	for(key in htable) {
		keys[keys.length] = key;
	}

	// sort key array.
	keys.sort();
	if(reverse == 1) keys.reverse();

	return keys;
}

/*
 * Radio object
 */
// initialize radio object.
function init_radio(obj, idx) {
	if(!obj) return;
	obj[idx].checked = true;
}