/*
uty.js - utillyty
Copyright (C) 2010 Attilio Pavone <tilly@utillyty.eu>
GNU General Public License version 3
*/
// tilly 10/12/2009

var UTY_DIRTYPE_FOLDER=0;
var UTY_DIRTYPE_FILE=1;
var UTY_SORT_ASC=1;
var UTY_SORT_DESC=2;
var UTY_ERR_NONE=0;
var UTY_ERR_WARN=1;
var UTY_ERR_USR=2;
var UTY_ERR_APP=3;
var UTY_ERR_SYS=4;

var UTY_BROWSER_IE="Microsoft Internet Explorer";

var UTY_KEY_CODE_RETURN=13;
var UTY_KEY_CODE_LEFT=37;
var UTY_KEY_CODE_UP=38;
var UTY_KEY_CODE_RIGHT=39;
var UTY_KEY_CODE_DOWN=40;
var UTY_KEY_CODE_BACK=8;
var UTY_KEY_CODE_F1=112;
var UTY_KEY_CODE_PAGE_UP=33;
var UTY_KEY_CODE_PAGE_DOWN=34;


var _uty_document_onselectstart;

function uty_trim(str,chars){
	return uty_ltrim(uty_rtrim(str,chars),chars);
}
function uty_ltrim(str, chars){
	chars=chars||"\\s";
	return str.replace(new RegExp("^["+chars+"]+","g"),"");
}
function uty_rtrim(str,chars){
	chars=chars||"\\s";
	return str.replace(new RegExp("["+chars+"]+$","g"),"");
}
function uty_starts(haystack,needle){
	return(haystack.match("^"+needle)==needle);
}
function uty_ends(haystack,needle){
	return(haystack.match(needle+"$")==needle);
}
function uty_aindex(array,value){
	var index;
	for(index in array){
		if(array[index]==value)return index;
	}	
	return undefined;
}
function uty_aremove(array,value,count){
	if(count===undefined)count=1;
	var index=uty_aindex(array,value);
	if(index!==undefined)array.splice(index,count);
}
function uty_select(input,start,end){
	if(typeof(input)==='string')input=document.getElementById(input); //v1.0
	input.focus();
	
	if(start===undefined)return;
	if(!end)end=input.value.length;
	
	if(input.createTextRange){
		var selRange=input.createTextRange();
		selRange.collapse(true);
		selRange.moveStart('character',start);
		selRange.moveEnd('character',end);
		selRange.select();
	}else if(input.selectionStart){
		input.selectionStart=start;
		input.selectionEnd=end;
	}else if(input.setSelectionRange&&input.dispatchEvent){
		if(input.value.length>0){
			var evt=document.createEvent("KeyboardEvent");
			if(!evt.initKeyEvent)return;
			input.setSelectionRange(start,start+1);
			evt.initKeyEvent("keypress",true,true,null,false,false,false,false,0,input.value.charCodeAt(start));
			input.dispatchEvent(evt);

			var tmpend=end;
			if(end==input.value.length)tmpend-=1;
			input.setSelectionRange(tmpend,tmpend+1);
			evt=document.createEvent("KeyboardEvent");
			evt.initKeyEvent("keypress",true,true,null,false,false,false,false,0,input.value.charCodeAt(tmpend));
			input.dispatchEvent(evt);
		}
		input.setSelectionRange(start,end);
	}
}
function uty_text(element,text){
	if(text){
		if(element.innerText!==undefined)element.innerText=text;
		else if(element.textContent!==undefined)element.textContent=text;
	}
	return(element.innerText||element.textContent)||"";
}
function uty_window_x(elevent){
	var left=0;
	if(elevent.parentNode){//domNode
		var parent=elevent;
		do{
			left+=parent.offsetLeft;
		}while(parent=parent.offsetParent);
		parent=elevent.parentNode;
		do{
			if(elevent.style&&(elevent.style.position=='fixed'))break;
			if(parent.scrollLeft)left-=parent.scrollLeft;
			elevent=parent;
		}while(parent=parent.parentNode);
	}else if(elevent.clientX){//domEvent
		left=elevent.clientX;	
	}
	return left;
}
function uty_window_y(elevent){
	var top=0;
	if(elevent.parentNode){
		var parent=elevent;
		do{
			top+=parent.offsetTop;
		}while(parent=parent.offsetParent);
		parent=elevent.parentNode;
		do{
			if(elevent.style&&(elevent.style.position=='fixed'))break;
			if(parent.scrollTop)top-=parent.scrollTop;
			elevent=parent;
		}while(parent=parent.parentNode);
	}else if(elevent.clientY){
		top=elevent.clientY;
	}
	return top;
}
function uty_window_scroll_x(newValue){
	if(typeof(window.pageYOffset)=='number'){//Netscape
		if(newValue!==undefined)window.pageXOffset=newValue;
		return window.pageXOffset;
	}else if(document.body&&document.body.scrollLeft){//w3c
		if(newValue!==undefined)document.body.scrollLeft=newValue;
		return document.body.scrollLeft;
	}else if(document.documentElement&&document.documentElement.scrollLeft){//IE6+ xhtml doctype
		if(newValue!==undefined)document.documentElement.scrollLeft=newValue;
		return document.documentElement.scrollLeft;
	}
	return 0;
}
function uty_window_scroll_y(newValue){
	if(typeof(window.pageYOffset)=='number'){
		if(newValue!==undefined)window.pageYOffset=newValue;
		return window.pageYOffset;
	}else if(document.body&&document.body.scrollTop){
		if(newValue!==undefined)document.body.scrollTop=newValue;
		return document.body.scrollTop;
	}else if(document.documentElement&&document.documentElement.scrollTop){
		if(newValue!==undefined)document.documentElement.scrollTop=newValue;
		return document.documentElement.scrollTop;
	}
	return 0;
}
function uty_page_x(elevent){
	if(elevent.pageX)return elevent.pageX;//mozilla event
	var left=uty_window_x(elevent);
	if(elevent.style&&(elevent.style.position=='fixed'))return left;
	return left+uty_window_scroll_x();
}
function uty_page_y(elevent){
	if(elevent.pageY)return elevent.pageY;
	var top=uty_window_y(elevent);
	if(elevent.style&&(elevent.style.position=='fixed'))return top;
	return top+uty_window_scroll_y();
}
function uty_window_width(){
	if(typeof(window.innerWidth)=='number'){//Non-IE
		return window.innerWidth;
	}else if(document.documentElement&&(document.documentElement.clientWidth||document.documentElement.clientHeight)){
		return document.documentElement.clientWidth;//IE6+ xhtml doctype
	}else if(document.body&&(document.body.clientWidth||document.body.clientHeight)){		
		return document.body.clientWidth;//IE4
	}
	return 0;
}
function uty_window_height(){
	if(typeof(window.innerWidth)=='number'){
		return window.innerHeight;
	}else if(document.documentElement&&(document.documentElement.clientWidth||document.documentElement.clientHeight)){
		return document.documentElement.clientHeight;
	}else if(document.body&&(document.body.clientWidth||document.body.clientHeight)){
		return document.body.clientHeight;
	}
	return 0;
}
function uty_center_in_window(element){
	var width=element.offsetWidth?element.offsetWidth:0;
	var height=element.offsetHeight?element.offsetHeight:0;
	var left=(uty_window_width()-width)/2;
	var top=(uty_window_height()-height)/2;
	element.style.position='fixed';
	element.style.left=left+"px";
	element.style.top=top+"px";
}
function uty_window_add_event(event,listener){
	if(window.addEventListener){//w3c
		window.addEventListener(event,listener,false);
	}else if(document.addEventListener){//opera
		document.addEventListener(event,listener,false);
	}else if(window.attachEvent){//IE
		window.attachEvent('on'+event,listener);
	}else{
		return false;
	}
}
function uty_window_remove_event(event,listener){
	if(window.removeEventListener){//w3c
		window.removeEventListener(event,listener,false);
	}else if(document.removeEventListener){//opera
		document.removeEventListener(event,listener,false);
	}else if(window.detachEvent){//IE
		window.detachEvent('on'+event,listener);
	}else{
		return false;
	}
}
function uty_window_add_onload(func,code){
	if((uty_window_add_event('load',func)===false)&&code){
		//older browsers(mac/ie5...)
		if(typeof window.onload=='function'){
			var existing=onload;
			window.onload=function(){existing();eval(code);};
		}else{
			window.onload=func;
		}
	}
}
function uty_post(url,content,callback){
	var xhr=new XMLHttpRequest();
	xhr.open("POST",url,true);
	xhr.setRequestHeader("Content-type","application/x-www-form-urlencoded");
	xhr.setRequestHeader("Content-length",content.length);
	xhr.setRequestHeader("Connection","close");
	xhr.onreadystatechange=function(){
		if(xhr.readyState==4){
			if(callback)callback(xhr.status,xhr.statusText,xhr.responseText);
		}
	}
	xhr.send(content);
	return xhr;
}
function uty_document_disable_onselectstart(disable){
	if(navigator.appName==UTY_BROWSER_IE){
		if(disable){
			if(typeof(document.onselectstart)=='function')_uty_document_onselectstart=document.onselectstart;
			document.onselectstart=function(){return false;};
		}else{
			document.onselectstart=_uty_document_onselectstart?_uty_document_onselectstart:"return true";//sic
		}
	}
	return !disable;
}
function uty_selection_clear(){
	if(document.selection&&document.selection.empty)
		document.selection.empty();
	else if(window.getSelection)
		window.getSelection().removeAllRanges();
}
function uty_key_code(event){
	if(!event) event=window.event;
	if(event){
		if (event.keyCode)return event.keyCode;
		if (event.which)return event.which;
		if (event.charCode)return event.charCode;
	}
	return 0;
}
function uty_stop_propagation(event){
	if (!event) event = window.event;
	if (event) {
		event.cancelBubble = true;
		if (event.stopPropagation) event.stopPropagation();
	}
}
function uty_format_number(value,decimals,decPoint,thousandsSep){
	if(decimals===0||decimals==='0')value=Math.round(value);
	str=value+'';
	var i='';
	var d=''; 
	var p=str.indexOf('.');
	if(p>0){
		i=str.substr(0,p);
		d=str.substr(p+1);		
	}else{
		i=str;
	}
	if(d.length>decimals){
		var last=parseInt(d.substr(decimals,1));
		var dd=parseInt(d.substr(0,decimals));
		if(last>5)dd++;
		d=dd+'';
		if(d.length>decimals){//rest
			ii=parseInt(i);
			ii++;
			i=ii+'';
			d=d.substr(1);
		}
	}
	d=uty_str_rpad(d,'0',decimals);
	var ret='';
	if (thousandsSep){
		for(p=0;p<i.length;p++){
			ret=i.substr(i.length-1-p,1)+ret;
			if(((p+1)%3==0)&&(p<i.length-1))ret=thousandsSep+ret;
		}		
	}else{
		ret=i;
	}
	if(d!='')ret+=decPoint+d;
	return ret;
}
function uty_parse_float(str,decPoint,thousandsSep){
	if(thousandsSep!=='')str=uty_str_replace(thousandsSep,'',str);
	if(decPoint!=='.')str=uty_str_replace(decPoint,'.',str);
	return parseFloat(str);
}
function uty_parse_int(str,thousandsSep){
	if(thousandsSep)str=uty_str_replace(thousandsSep,'',str);
	return parseInt(str);
}
function uty_format_date(value,format){
	var ret='';
	var tmp='';
	for(var i=0;i<format.length;i++){
		var c=format[i];
		switch(c){
			case 'd':
				ret+=uty_str_lpad(value.getDate()+'','0',2);
				break;
			case 'm':
				ret+=uty_str_lpad((value.getMonth()+1)+'','0',2);
				break;
			case 'y':
				tmp=value.getFullYear()+'';
				if(tmp.length>2)tmp=tmp.substr(2);
				ret+=uty_str_lpad(tmp,'0',2); 
				break;
			case 'Y':
				ret+=uty_str_lpad(value.getFullYear()+'','0',4);
				break;
			case 'H':
				ret+=uty_str_lpad(value.getHours()+'','0',2);
				break;
			case 'i':
				ret+=uty_str_lpad(value.getMinutes()+'','0',2);
				break;
			case 's':
				ret+=uty_str_lpad(value.getSeconds()+'','0',2);
				break;
			default:
				ret+=c;
		}
	}
	return ret;
}
function uty_parse_date(str,format){
	if(!format)return Date.parse(str);
	var ret=new Date(2000,0,1,0,0,0);//a leap year
	var p=0;
	for(var i=0;i<format.length;i++){
		var c=format[i];
		switch(c){
			case 'd':
				ret.setDate(parseInt(uty_str_lpad(uty_ltrim(str.substr(p,2),'0'),'0',1)));
				p+=2;
				break;
			case 'm':
				ret.setMonth(parseInt(uty_str_lpad(uty_ltrim(str.substr(p,2),'0'),'0',1))-1);
				p+=2;
				break;
			case 'y':
				ret.setFullYear(parseInt(uty_str_lpad(uty_ltrim(str.substr(p,2),'0'),'0',1)));
				p+=2;
				break;
			case 'Y':
				ret.setFullYear(parseInt(uty_str_lpad(uty_ltrim(str.substr(p,4),'0'),'0',1)));
				p+=4;
				break;
			case 'H':
				ret.setHours(parseInt(uty_str_lpad(uty_ltrim(str.substr(p,2),'0'),'0',1)));
				p+=2;
				break;
			case 'i':
				ret.setMinutes(parseInt(uty_str_lpad(uty_ltrim(str.substr(p,2),'0'),'0',1)));
				p+=2;
				break;
			case 's':
				ret.setSeconds(parseInt(uty_str_lpad(uty_ltrim(str.substr(p,2),'0'),'0',1)));
				p+=2;
				break;
			default:
				p++;
		}
	}
	return ret;
}
function uty_str_lpad(str,chr,len){
    while(str.length < len)
        str=chr+str;
    return str;
}
function uty_str_rpad(str,chr,len){
    while(str.length<len)
        str+=chr;
    return str;
}
function uty_str_replace(oldStr,newStr,str){
	while(str.indexOf(oldStr)>=0)
		str=str.replace(oldStr,newStr);
	return str;
}