//////////////////////////////////////////////////////////////
//    
// Miscellaneous JavaScript functions - 2005-09-18
//
//	© Enki Technologies
//	info@enki-tech.com
//
//////////////////////////////////////////////////////////////


/////////////////////
// BrowserCheck
/////////////////////
function BrowserCheck() {
	var b = navigator.appName
	if (b=="Netscape") this.b = "ns"
	else if (b=="Microsoft Internet Explorer") this.b = "ie"
	else this.b = b
	this.v = parseInt(navigator.appVersion)
	this.ns = (this.b=="ns" && this.v>=4)
	this.ns4 = (this.b=="ns" && this.v==4)
	this.ns5 = (this.b=="ns" && this.v==5)
	this.ns6 = (this.b=="ns" && this.v==6)
	this.ie = (this.b=="ie" && this.v>=4)
	this.ie4 = (navigator.userAgent.indexOf('MSIE 4')>0)
	this.ie5 = (navigator.userAgent.indexOf('MSIE 5')>0)
	if (this.ie5) this.v = 5
	this.ie6 = (navigator.userAgent.indexOf('MSIE 6')>0)
	if (this.ie6) this.v = 6
	this.min = (this.ns||this.ie)
	this.mac = (navigator.appVersion.indexOf("Mac")!=-1) ? true : false;
}


/////////////////////
// getObject
/////////////////////
function getObject(objectId) {
	var obj;
	if (document.getElementById) {
		// DOM
		obj = document.getElementById(objectId);
	}
	else if (document.all) {
		// ie4
		obj = eval("document.all." + objectId);
	}
	else {
		// nn4
		obj = getObjectNN4(document,objectId);
	}
	return obj;
}
function getObjectNN4(container,objectId)
{
	var x = container.layers;
	var obj;
	for (var i=0;i<x.length;i++)
	{
		if (x[i].id == objectId) { obj = x[i]; }
		else {
			if (x[i].layers.length) {
				var tmp = getObjectNN4(x[i],objectId);
				if (tmp) { obj = tmp; }
			}
		}
	}
	return obj;
}



/////////////////////
// hideObject
/////////////////////
function hideObject(obj) {
	if (obj) {
		if (document.getElementById) {
			// DOM
			obj.style.visibility="hidden";
			obj.style.display="none";
		}
		else if (document.all) {
			// ie4
			obj.style.visibility="hidden";
			obj.style.display="none";
		}
		else {
			// nn4
			obj.visibility="hide";
		}
	}
}


/////////////////////
// showObject
/////////////////////
function showObject(obj) {
	if (obj) {
		if (document.getElementById) {
			// DOM
			obj.style.visibility="visible";
			obj.style.display="block";
		}
		else if (document.all) {
			// ie4
			obj.style.visibility="visible";
			obj.style.display="block";
		}
		else {
			// nn4
			obj.visibility="show";
		}
	}
}


/////////////////////
// getObjectPositionX
/////////////////////
function getObjectPositionX(obj) {
	var is = new BrowserCheck();
	if (is.ns && is.v<5) {
		return obj.x;
	}
	else {
		x = 0;
		while (obj && obj.tagName != 'BODY') {
			x += obj.offsetLeft;
			obj = obj.offsetParent;
		}
		return x;
	}
}


/////////////////////
// getObjectPositionY
/////////////////////
function getObjectPositionY(obj) {
	var is = new BrowserCheck();
	if (is.ns && is.v<5) {
		return obj.y;
	}       
	else {
		y = 0;
		while (obj && obj.tagName != 'BODY') {
			y += obj.offsetTop;
			obj = obj.offsetParent;
		}
		return y;
	}
}


/////////////////////
// setObjectPositionX
/////////////////////
function setObjectPositionX(obj,X) {
	if (document.layers) {
		// nn
		obj.left = X;
	}
	else {
		// ie
		obj.style.left = X;
	}
}

/////////////////////
// setObjectPositionY
/////////////////////
function setObjectPositionY(obj,Y) {
	if (document.layers) {
		// nn
		obj.top = Y;
	}
	else {
		// ie
		obj.style.top = Y;
	}
}


/////////////////////
// getParentObject
/////////////////////
function getParentObject(child) {
	var is = new BrowserCheck();
	var parent = document;
	if (child == window) parent = null;
	else if (child == document) parent = window;
	else if (is.ns4) {
		if (child.parentLayer) {
			if (child.parentLayer != window) parent = child.parentLayer;
		}
	}
	else {
		if (child.parentNode) parent = child.parentNode;
		else if (child.parentElement) parent = child.parentElement;
	}
	return parent;
}


/////////////////////
// containsObject
/////////////////////
function containsObject(container,containee) {
	if (container.contains) {
		return container.contains(containee);
	}
	else {
		while (containee != null) {
			if (container == containee) { return true; }
			containee = getParentObject(containee);
		}
		return false;
	}
}


/////////////////////
// FormFunctions
/////////////////////

function isValidEmail(s) {
	if (isEmpty(s)) { return false; }
	//return (s.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) != -1);
	return (s.search(/^[\w-]+(\.[\w-]+)*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) != -1);
}
function isValidDate(s,f) {
	if (isEmpty(s)) { return false; }
	var rExp = /(\d{1,4})-(\d{1,2})-(\d{1,2})/;
	var posYear = 1;
	var posMonth = 2;
	var posDay = 3;
	if (!isEmpty(f)) { 
		if (f == 'dd/mm/yyyy') {
			rExp = /(\d{1,2})\/(\d{1,2})\/(\d{1,4})/;
			posYear = 3;
			posMonth = 2;
			posDay = 1;
		}
		else if (f == 'mm/dd/yyyy') {
			rExp = /(\d{1,2})\/(\d{1,2})\/(\d{1,4})/;
			posYear = 3;
			posMonth = 1;
			posDay = 2;
		}
	}
	var d = s.match(rExp);
	if (d != null) {
		d[posMonth]--;
		var dd= new Date(d[posYear], d[posMonth], d[posDay]);
		return ( dd.getDate()==d[posDay] && dd.getMonth()==d[posMonth] );
	}
	return false
}
function isEmpty(s) {
	if (s == null || s == "") {
		return true;
	}
	return false;
}
function isInteger(s) {
	i = stringToInteger(s);
	return (i == s);
}
function stringToInteger(s) {
	if (s == null || s == "") { i = 0; }
	else { i = parseInt(s); }
	if (isNaN(i)) { i = 0; }
	return i;
}
function isFloat(s) {
	i = stringToFloat(s);
	return (i == s);
}
function stringToFloat(s) {
	if (s == null || s == "") { i = 0; }
	else { i = parseFloat(s); }
	if (isNaN(i)) { i = 0; }
	return i;
}
function radioIsSelected(r) {
	var radioChoice = false;
	if (r) {
		for (counter = 0; counter < r.length; counter++) {
			if (r[counter].checked) {
				radioChoice = true;
			}
		}
	}
	return radioChoice;
}

/////////////////////
// Preload Images
/////////////////////

var preloadImagesArray = new Array();
function preloadImages() {
	for (var i=0; i <preloadImages.arguments.length;i++){
		var index = preloadImagesArray.length;
		preloadImagesArray[index]=new Image();
		preloadImagesArray[index].src=preloadImages.arguments[i];
	}
}


/////////////////////
// String functions
/////////////////////

function trim(TRIM_VALUE) {
	if(TRIM_VALUE.length < 1){ return ""; }
	TRIM_VALUE = rTrim(TRIM_VALUE);
	TRIM_VALUE = lTrim(TRIM_VALUE);
	if (TRIM_VALUE==""){ return ""; }
	else { return TRIM_VALUE; }
}

function rTrim(VALUE){
	var w_space = String.fromCharCode(32);
	var v_length = VALUE.length;
	var strTemp = "";
	if (v_length < 0) { return""; }
	var iTemp = v_length -1;
	while (iTemp > -1) {
		if (VALUE.charAt(iTemp) != w_space) {
			strTemp = VALUE.substring(0,iTemp +1);
			break;
		}
		iTemp = iTemp-1;
	}
	return strTemp;
}

function lTrim(VALUE){
	var w_space = String.fromCharCode(32);
	var v_length = VALUE.length;
	if (v_length < 1) { return ""; }
	var strTemp = "";
	var iTemp = 0;
	while (iTemp < v_length) {
		if (VALUE.charAt(iTemp) != w_space) {
			strTemp = VALUE.substring(iTemp,v_length);
			break;
		}
		iTemp = iTemp + 1;
	}
	return strTemp;
}



/////////////////////
// String functions
/////////////////////
function addEvent(obj, evType, fn, useCapture) {
	if (obj.addEventListener) {
		obj.addEventListener(evType, fn, useCapture);
		return true;
	} 
	else if (obj.attachEvent) {
		var r = obj.attachEvent("on"+evType, fn);
		return r;
	} 
	else {
		alert("Handler could not be attached");
	}
}

function removeEvent(obj, evType, fn, useCapture) {
	if (obj.removeEventListener) {
		obj.removeEventListener(evType, fn, useCapture);
		return true;
	}
	else if (obj.detachEvent) {
		var r = obj.detachEvent("on"+evType, fn);
		return r;
	}
	else {
		alert("Handler could not be removed");
	}
} 


/////////////////////
// safeOnLoad
/////////////////////
var safeOnLoadArray = new Array();
function safeAddOnload(f) {
	var is = new BrowserCheck();
	if (is.mac && is.ie4)  // IE 4.5 blows out on testing window.onload
	{
		window.onload = safeOnload;
		safeOnLoadArray[safeOnLoadArray.length] = f;
	}
	else if  (window.onload)
	{
		if (window.onload != safeOnload)
		{
			safeOnLoadArray[0] = window.onload;
			window.onload = safeOnload;
		}		
		safeOnLoadArray[safeOnLoadArray.length] = f;
	}
	else
		window.onload = f;
}
function safeOnload() {
	for (var i=0;i<safeOnLoadArray.length;i++)
		safeOnLoadArray[i]();
}