function $(e){if(typeof e=='string')e=document.getElementById(e);return e};
function collect(a,f){var n=[];for(var i=0;i<a.length;i++){var v=f(a[i]);if(v!=null)n.push(v)}return n};

ajax={};
ajax.x=function(){try{return new ActiveXObject('Msxml2.XMLHTTP')}catch(e){try{return new ActiveXObject('Microsoft.XMLHTTP')}catch(e){return new XMLHttpRequest()}}};
ajax.serialize=function(f)
{

    var g=function(n)
    {
        //return f.getElementsByTagName(n);
        
        var arr=new Array();
        var elems = f.getElementsByTagName(n); 
        var i = 0;
        for (var x = 0; x < elems.length; x++)
        {
            if(elems[x].disabled == false)
            {
                arr[i++] = elems[x]; 
            }
        }
        return arr; 
     
    };

    var nv = function(e)
    {
        if(e.name)
            return encodeURIComponent(e.name)+'/'+encodeURIComponent(e.value);
        else 
            return '/'
    };
    
    var i=collect(g('input'), function(i)
                            {
                                if((i.type!='radio'&&i.type!='checkbox')||i.checked)
                                return nv(i)
                            }
                    );
                    
                    var s=collect(g('select'),nv);
                    var t=collect(g('textarea'),nv);
                    return i.concat(s).concat(t).join('/');};


ajax.send=function(u,f,m,a){var x=ajax.x();x.open(m,u,true);x.onreadystatechange=function(){if(x.readyState==4)f(x.responseText)};if(m=='POST')x.setRequestHeader('Content-type','application/x-www-form-urlencoded');x.send(a)};
ajax.get=function(url,func){ajax.send(url,func,'GET')};
ajax.gets=function(url){var x=ajax.x();x.open('GET',url,false);x.send(null);return x.responseText};
ajax.post=function(url,func,args){ajax.send(url,func,'POST',args)};
ajax.update=function(url,elm){var e=$(elm);var f=function(r){e.innerHTML=r};ajax.get(url,f)};
ajax.submit=function(url,elm,frm){var e=$(elm);var f=function(r){e.innerHTML=r};ajax.post(url,f,ajax.serialize(frm))};

function stringFormat(strInput)
{
	var idx = 0;

	for (var i = 1; i < arguments.length; i++) {
    		while ((idx = strInput.indexOf('{' + (i - 1) + '}', idx)) != -1) {
			strInput = strInput.substring(0, idx) + arguments[i] + strInput.substr(idx + 3);
		}
	}

	return strInput;
}





/* drevo */
function tryParser() 
{
	if (tryParser.name)
		return tryParser.name;
	
	var MNames = ["Microsoft","MSXML", "MSXML2" , "MSXML3"];
	var object;
	
	for (var i = 0; i < MNames.length; i++) 
	{
		object = new ActiveXObject(MNames[i] + ".Xmlhttp");
		return tryParser.name = MNames[i];
	}
	
	return "";
}


function bind(url, callbackfunction)
{
    if (window.XMLHttpRequest) 
    {
        var xmlhttp = new XMLHttpRequest(); 
    }
    else if (window.ActiveXObject) 
    { 
        var xmlhttp = new ActiveXObject(tryParser() + ".XMLHTTP");
    }

    xmlhttp.open("GET", url, true);	// async
    
	xmlhttp.onreadystatechange = function ()
	{
		if ( xmlhttp.readyState == 4 ) 
		{
			 callbackfunction(xmlhttp.responseText)
		}
	};
	
	window.setTimeout(function (){xmlhttp.send(null);}, 10);
}


function lockButtons(whichform) 
{
    ua = new String(navigator.userAgent);
    if (ua.match(/IE/g)) {
        for (i=1; i<whichform.elements.length; i++) {
            if ((whichform.elements[i].type == 'submit') || (whichform.elements[i].type == 'button'))
                whichform.elements[i].disabled = true;
        }
    }
    whichform.submit();
}

function openWindow()
{
    var newWin = null;
    var url = openWindow.arguments[0];
    nArgs = openWindow.arguments.length;
    var width = openWindow.arguments[1];
    var height = openWindow.arguments[2];

    //  if dynamic window size args are passed
    if (nArgs > 1)
        newWin =  window.open ("","newWindow","toolbar=no,width=" + width + ",height=" + height + ",directories=no,status=no,scrollbars=yes,resizable=no,menubar=no");
    else 
        newWin =  window.open ("","newWindow","toolbar=no,width=" + SGL_JS_WINWIDTH + ",height=" + SGL_JS_WINHEIGHT + ",directories=no,status=no,scrollbars=yes,resizable=no,menubar=no");
    newWin.location.href = url;
}

function confirmSubmit(item, formName)
{
    var evalFormName = eval('document.' + formName)
    var flag = false
    for (var count = 0; count < evalFormName.elements.length; count++) {
        var tipo = evalFormName.elements[count].type
        if (tipo == 'checkbox' && evalFormName.elements[count].checked == true && evalFormName.elements[count].name != '')
            flag = true 
    }
    if (flag == false) {
        alert('You must select an element to delete')
        return false
    }
    var agree = confirm("Are you sure you want to delete this " + item + "?");
    if (agree)
        return true;
    else
        return false;
}

function confirmSave(formName)
{
    var evalFormName = eval('document.' + formName)
    var flag = false
    for (var count = 0; count < evalFormName.elements.length; count++) {
        var tipo = evalFormName.elements[count].type
        if (tipo == 'checkbox' && evalFormName.elements[count].checked == true && evalFormName.elements[count].name != '')
            flag = true 
    }
    if (flag == false) {
        alert('You must select an element to save')
        return false
    }
}

function confirmSend(formName)
{
    var evalFormName = eval('document.' + formName)
    var flag = false
    for (var count = 0; count < evalFormName.elements.length; count++) {
        var tipo = evalFormName.elements[count].type
        if (tipo == 'checkbox' && evalFormName.elements[count].checked == true && evalFormName.elements[count].name != '')
            flag = true 
    }
    if (flag == false) {
        alert('You must select at least one recipient')
        return false
    }
}

function confirmCategoryDelete(item) 
{
    var agree = confirm("Are you sure you want to delete this " + item + "?");
    if (agree)
        return true;
    else
        return false;
}

function verifySelectionMade() 
{
    var moveForm = document.moveCategory.frmNewCatParentID
    var selectedCat = moveForm.value
    if(selectedCat == '') {
        alert('Please select a new parent category')
        return false;
    } else
        return true;
}

function checkInput(formName, fieldName)
{
    var f = eval('document.' + formName + '.' + fieldName)
    if (f.value == '') {
        alert('Please enter a value in the field before submitting');
        return false;
    } else
        return true;
}

function getSelectedValue(selectObj)
{
    return (selectObj.options[selectObj.selectedIndex].value);
}


function toggleDisplay(myElement)
{	
	boxElement = document.getElementById(myElement);

	if (boxElement.style.display == 'none') {
		boxElement.style.display = 'block';
	} else {
    	// ... otherwise collapse box
		boxElement.style.display = 'none';
	}
}

function confirmCustom(alertText, confirmText, formName)
{
    var evalFormName = eval('document.' + formName)
    var flag = false
    for (var count = 0; count < evalFormName.elements.length; count++) {
        var tipo = evalFormName.elements[count].type
        if (tipo == 'checkbox' && evalFormName.elements[count].checked == true && evalFormName.elements[count].name != '')
            flag = true 
    }
    if (flag == false) {
        alert(alertText)
        return false
    }
    var agree = confirm(confirmText);
    if (agree)
        return true;
    else
        return false;
}