/* FORM TARGET FUNCTIONS */
function targetImage(strUrl,strWidth,strHeight)
{
	var strFeatures = "width=" + strWidth + ",height=" + strHeight + ",left=100,top=100,fullscreen=no,scrollbars=no,titlebar=no,resizable=yes,menubar=no,toolbar=no";
	newWindow = window.open(strUrl,'Image',strFeatures);
	newWindow.focus();
	return false;
}

/* CONTEXT MENU HANDLING METHODS */
function displayContextMenu(divElement)
{
	var obj = divElement;
	var Dx = 0;
	var Dy = 0;
	while (obj.offsetParent)
	{
		Dx += obj.offsetLeft;
		Dy += obj.offsetTop;
		obj = obj.offsetParent;
	}

	divElement.style.left = event.clientX - Dx;
	divElement.style.top = event.clientY - Dy;
	divElement.style.display = "block";
	divElement.setCapture();
}
function clickContextMenu(divElement,strClassName)
{
	divElement.releaseCapture();
	divElement.style.display = "none";

	// Make sure onmouseout is synchronized for all the different navigators (file, image, resource, permissions,...). Note: this code could be made more general.
	elem = event.srcElement;
	if ((elem != null) && (elem.className != null) && (elem.className.indexOf(strClassName) >= 0)) elem.onclick();
	else if ((elem != null) && (elem.className != null) && (elem.className.indexOf("directory") >= 0)) elem.onmouseover(elem);
	else if ((elem != null) && (elem.className != null) && (elem.className.indexOf("permission") >= 0)) elem.onmouseover(elem);
	else if ((elem != null) && (elem.className != null) && (elem.className.indexOf("orgUnit") >= 0)) elem.onmouseover(elem);
	else if ((elem != null) && (elem.className != null) && (elem.className.indexOf("file") >= 0)) elem.parentElement.onmouseover(elem);
	return false;
}
function toggleContextMenu(strClassName)
{
	elem = event.srcElement;
	if ((elem != null) && (elem.className != null) && (elem.className.indexOf(strClassName) >= 0))
	{
		var strSuffiks = elem.className;
		strSuffiks = strSuffiks.substring(elem.className.length-5,elem.className.length);
		if (strSuffiks == "Hover") elem.className = elem.className.substring(0,elem.className.length-5);
		else elem.className = elem.className + "Hover";
	}
}

/* VALIDATION METHODS */
function validateElem(valElem,valElemShadow,regExpPattern,errMsg)
{
	if ((valElem != null) && (valElemShadow != null))
	{
		var regExp = new RegExp(regExpPattern);
		if (!regExp.test(valElem.value))
		{
			valElemShadow.innerHTML = errMsg;
			return false;
		}
		valElemShadow.innerHTML = "";
	}
	return true;
}
function validateEmail(emailStr)
{
	var checkTLD=0;
	var knownDomsPat=/ ^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
	var emailPat=/^(.+)@(.+)$/;
	var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
	var validChars="\[^\\s" + specialChars + "\]";
	var quotedUser="(\"[^\"]*\")";
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
	var atom=validChars + '+';
	var word="(" + atom + "|" + quotedUser + ")";
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
	var matchArray=emailStr.match(emailPat);
	if (matchArray==null) return false;

	var user=matchArray[1];
	var domain=matchArray[2];
	for (i=0; i < user.length; i++)
	{
		if (user.charCodeAt(i) > 127) return false;
	}
	for (i=0; i < domain.length; i++)
	{
		if (domain.charCodeAt(i) > 127) return false;
	}
	if (user.match(userPat)==null) return false;
	var IPArray=domain.match(ipDomainPat);
	if (IPArray!=null)
	{
		for (var i=1;i<=4;i++)
		{
			if (IPArray>255) return false;
		}
		return true;
	}
	var atomPat=new RegExp("^" + atom + "$");
	var domArr=domain.split(".");
	var len=domArr.length;
	for (i=0;i < len; i++)
	{
		if (domArr[i].search(atomPat) == -1) return false;
	}
	if (checkTLD && (domArr[domArr.length-1].length != 2) && domArr[domArr.length-1].search(knownDomsPat)==-1) return false;
	if (len < 2) return false;
	return true;
}
function openImageUpload(strUrl,category)
{
	strUrl += "?action=ModDocumentUploadImage&category=" + category;
	var dialog = window.open(strUrl,"acmImageUploadDialog","width=400,height=200,left=1,top=1,fullscreen=no,scrollbars=no,titlebar=yes,resizable=no,menubar=no,toolbar=no");
	if (dialog != null) dialog.focus();
}
function openResourceUpload(strUrl,category)
{
	strUrl += "?action=ModDocumentUploadResource&category=" + category;
	var dialog = window.open(strUrl,"acmResourceUploadDialog","width=400,height=200,left=1,top=1,fullscreen=no,scrollbars=no,titlebar=yes,resizable=no,menubar=no,toolbar=no");
	if (dialog != null) dialog.focus();
}

/* MISCELANEOUS METHODS */
function trimString(str)
{
  str = this != window ? this : str;
  return str.replace(/^\s+/g,'').replace(/\s+$/g,'');
}
function encodeUrl(strUrl)
{
	newUrl = strUrl;
	if (newUrl != null)
	{
		newUrl = newUrl.replace(/\?/g,"%3f");
		newUrl = newUrl.replace(/\&/g,"%26");
		newUrl = newUrl.replace(/\=/g,"%3d");
	}
	else newUrl = "";

	return newUrl;
}
var nav4 = window.Event ? true : false;
function modifiers(e)
{
  if (nav4)
  {
     document.keys.alt.checked = e.modifiers & Event.ALT_MASK;
     document.keys.control.checked = e.modifiers & Event.CONTROL_MASK;
     document.keys.shift.checked = e.modifiers & Event.SHIFT_MASK;
     document.keys.meta.checked = e.modifiers & Event.META_MASK;
  }
  else
  {
     document.keys.alt.checked = e.altKey;
     document.keys.control.checked = e.ctrlKey;
     document.keys.shift.checked = e.shiftKey;
     document.keys.meta.checked = false;
  }
  return false;
}

/* AJAX METHODS */
function callbackPopulateHTML(text, headers, callingContext)
{
	document.getElementById(callingContext).innerHTML = text;
}