if (typeof(__dnn_m_aNamespaces) == 'undefined')	//include in each DNN ClientAPI namespace file for dependency loading

	var __dnn_m_aNamespaces = new Array();



function dnn_dom_positioning()

{

	this.pns = 'dnn.dom';

	this.ns = 'positioning';

	this.dragCtr=null;

	this.dragCtrDims=null;

	this.dependencies = 'dnn,dnn.dom'.split(',');

	this.isLoaded = false;	

}



dnn_dom_positioning.prototype.bodyScrollLeft = function ()

{

	if (window.pageYOffset)

		return window.pageYOffset;

	

	var oBody = (document.compatMode && document.compatMode != "BackCompat") ? document.documentElement : document.body;		

	return oBody.scrollLeft;

}



dnn_dom_positioning.prototype.bodyScrollTop = function()

{

	if (window.pageXOffset)

		return window.pageXOffset;



	var oBody = (document.compatMode && document.compatMode != "BackCompat") ? document.documentElement : document.body;

	return oBody.scrollTop;

}



dnn_dom_positioning.prototype.viewPortHeight = function()

{

	// supported in Mozilla, Opera, and Safari

  if(window.innerHeight)

		return window.innerHeight;



	var oBody = (document.compatMode && document.compatMode != "BackCompat") ? document.documentElement : document.body;		

	return oBody.clientHeight;	

}



dnn_dom_positioning.prototype.viewPortWidth = function()

{

	// supported in Mozilla, Opera, and Safari

	if(window.innerWidth)

		return window.innerWidth;



	var oBody = (document.compatMode && document.compatMode != "BackCompat") ? document.documentElement : document.body;		

	return oBody.clientWidth;	

}





dnn_dom_positioning.prototype.dragContainer = function(oCtl)

{

	var iNewLeft=0;

	var iNewTop=0;

	var e = dnn.dom.event.object;

	var oCont = dnn.dom.getById(oCtl.contID);

	var oTitle = dnn.dom.positioning.dragCtr;

	var iScrollTop = this.bodyScrollTop();

	var iScrollLeft = this.bodyScrollLeft();



	if (oCtl.startLeft == null)

		oCtl.startLeft = e.clientX - this.elementLeft(oCont) + iScrollLeft;



	if (oCtl.startTop == null)

		oCtl.startTop = e.clientY - this.elementTop(oCont) + iScrollTop;



	if (oCont.style.position == 'relative')

		oCont.style.position = 'absolute';

	

	iNewLeft = e.clientX - oCtl.startLeft + iScrollLeft;

	iNewTop = e.clientY - oCtl.startTop + iScrollTop;



	if (iNewLeft > this.elementWidth(document.forms[0]))// this.viewPortWidth() + iScrollLeft)

		iNewLeft = this.elementWidth(document.forms[0]);//this.viewPortWidth() + iScrollLeft;

	

	if (iNewTop > this.elementHeight(document.forms[0])) //this.viewPortHeight() + iScrollTop)

		iNewTop = this.elementHeight(document.forms[0]);//this.viewPortHeight() + iScrollTop;

	

	oCont.style.left = iNewLeft + 'px';

	oCont.style.top = iNewTop + 'px';



	if (oTitle != null && oTitle.dragOver != null)

		eval(oCtl.dragOver);

}



dnn_dom_positioning.prototype.elementHeight = function (eSrc)

{	

	if (eSrc.offsetHeight == null || eSrc.offsetHeight == 0)

	{

		if (eSrc.offsetParent == null)

			return 0;

		if (eSrc.offsetParent.offsetHeight == null || eSrc.offsetParent.offsetHeight == 0)

		{

			if (eSrc.offsetParent.offsetParent != null)

				return eSrc.offsetParent.offsetParent.offsetHeight; //needed for Konqueror

			else

				return 0;

		}

		else

			return eSrc.offsetParent.offsetHeight;

	}

	else

		return eSrc.offsetHeight;

}



dnn_dom_positioning.prototype.elementLeft = function (eSrc)

{	

	return this.elementPos(eSrc).l;

}



dnn_dom_positioning.prototype.elementOverlapScore = function (oDims1, oDims2)

{		

	var iLeftScore = 0;

	var iTopScore = 0;

	if (oDims1.l <= oDims2.l && oDims2.l <= oDims1.r)	//if left of content fits between panel borders

		iLeftScore += (oDims1.r < oDims2.r ? oDims1.r : oDims2.r) - oDims2.l;	//set score based off left of content to closest right border

	if (oDims2.l <= oDims1.l && oDims1.l <= oDims2.r)	//if left of panel fits between content borders

		iLeftScore += (oDims2.r < oDims1.r ? oDims2.r : oDims1.r)  - oDims1.l; //set score based off left of panel to closest right border

	if (oDims1.t <= oDims2.t && oDims2.t <= oDims1.b)	//if top of content fits between panel borders

		iTopScore += (oDims1.b < oDims2.b ? oDims1.b : oDims2.b)  - oDims2.t;	//set score based off top of content to closest bottom border

	if (oDims2.t <= oDims1.t && oDims1.t <= oDims2.b)	//if top of panel fits between content borders

		iTopScore += (oDims2.b < oDims1.b ? oDims2.b : oDims1.b) -  - oDims1.t; //set score based off top of panel to closest bottom border

	

	return iLeftScore * iTopScore;

}



dnn_dom_positioning.prototype.elementTop = function (eSrc)

{

	return this.elementPos(eSrc).t;

}



dnn_dom_positioning.prototype.elementPos = function (eSrc)

{

	var oPos = new Object();

	oPos.t = 0;	//relative top

	oPos.l = 0; //relative left

	oPos.at = 0; //actual top

	oPos.al = 0; //actual left

	

	var eParent = eSrc;

	

	if (eSrc.style.position == 'absolute')

	{

		oPos.t = eParent.offsetTop;

		oPos.l = eParent.offsetLeft;

	}

		

	while (eParent != null)

	{

		oPos.at += eParent.offsetTop;

		oPos.al += eParent.offsetLeft;

		

		if (eSrc.style.position != 'absolute')

		{

			if (eParent.id == eSrc.id || eParent.style.position != 'relative')

			{

				oPos.t += eParent.offsetTop;

				oPos.l += eParent.offsetLeft;

			}

		}

		

		eParent = eParent.offsetParent;

		if (eParent == null || (eParent.tagName.toUpperCase() == "BODY" && dnn.dom.browser.isType(dnn.dom.browser.Konqueror)))  //safari no longer needed here

			break;		

	}	

	return oPos;

}



dnn_dom_positioning.prototype.elementWidth = function (eSrc)

{

	if (eSrc.offsetWidth == null || eSrc.offsetWidth == 0)

	{

		if (eSrc.offsetParent == null)

			return 0;

		if (eSrc.offsetParent.offsetWidth == null || eSrc.offsetParent.offsetWidth == 0)

		{

			if (eSrc.offsetParent.offsetParent != null)

				return eSrc.offsetParent.offsetParent.offsetWidth; //needed for Konqueror

			else

				return 0;

		}

		else

			return eSrc.offsetParent.offsetWidth



	}

	else

		return eSrc.offsetWidth;

}



dnn_dom_positioning.prototype.enableDragAndDrop = function(oContainer, oTitle, sDragCompleteEvent, sDragOverEvent)

{

	dnn.dom.attachEvent(document.body, 'onmousemove', __dnn_bodyMouseMove);

	dnn.dom.attachEvent(document.body, 'onmouseup', __dnn_bodyMouseUp);

	dnn.dom.attachEvent(oTitle, 'onmousedown', __dnn_containerMouseDownDelay);

	

	if (dnn.dom.browser.type == dnn.dom.browser.InternetExplorer)

		oTitle.style.cursor = 'hand';

	else

		oTitle.style.cursor = 'pointer';

	

	if (oContainer.id.length == 0)

		oContainer.id = oTitle.id + '__dnnCtr';

		

	oTitle.contID = oContainer.id;

	if (sDragCompleteEvent != null)

		oTitle.dragComplete = sDragCompleteEvent;

	if (sDragOverEvent != null)

		oTitle.dragOver = sDragOverEvent;

	

	return true;

}



dnn_dom_positioning.prototype.placeOnTop = function(oCont, bShow, sSrc)

{

	if (dnn.dom.browser.isType(dnn.dom.browser.Opera, dnn.dom.browser.Opera, dnn.dom.browser.Mozilla, dnn.dom.browser.Netscape))

		return;	//not needed



	var oIFR=dnn.dom.getById('ifr' + oCont.id);

		

	if (bShow)

	{

		if (oIFR == null)

		{

			var oIFR = document.createElement('iframe');

			oIFR.id = 'ifr' + oCont.id;

			if (sSrc != null)

				oIFR.src = sSrc;

			oIFR.style.top = '0px';

			oIFR.style.left = '0px';

			oIFR.style.filter = "progid:DXImageTransform.Microsoft.Alpha(opacity=0)";

			oIFR.scrolling = 'no';

			oIFR.frameBorder = 'no';

			oIFR.style.display = 'none';

			oIFR.style.position = 'absolute';

			oCont.parentNode.appendChild(oIFR);

		}

		var oDims = new dnn.dom.positioning.dims(oCont);



		oIFR.style.width=oDims.w;

		oIFR.style.height=oDims.h;

		oIFR.style.top=oDims.t + 'px';

		oIFR.style.left=oDims.l + 'px';

		

		var iIndex = dnn.dom.getCurrentStyle(oCont, 'zIndex');

		if (iIndex == null || iIndex == 0)

			oCont.style.zIndex = 1;

		oIFR.style.zIndex=iIndex-1;

		oIFR.style.display="block";

		

	}

	else if (oIFR != null)

		oIFR.style.display='none';

}





//dims object

dnn_dom_positioning.prototype.dims = function (eSrc)

{

	var bHidden = (eSrc.style.display == 'none');

	

	if (bHidden)

		eSrc.style.display = "";

	

	this.w = dnn.dom.positioning.elementWidth(eSrc);

	this.h = dnn.dom.positioning.elementHeight(eSrc);

	var oPos = dnn.dom.positioning.elementPos(eSrc);

	this.t = oPos.t;

	this.l = oPos.l;

	this.at = oPos.at;	//actual top

	this.al = oPos.al;	//actual left

	this.rot = this.at - this.t; //relative offset top

	this.rol = this.al - this.l; //relative offset left

	

	this.r = this.l + this.w;

	this.b = this.t + this.h;

	

	if (bHidden)

		eSrc.style.display = "none";

	

}



dnn_dom_positioning.prototype.dependenciesLoaded = function()

{

	return (typeof(dnn) != 'undefined' && typeof(dnn.dom) != 'undefined');

}



dnn_dom_positioning.prototype.loadNamespace = function ()

{

	if (this.isLoaded == false)

	{		

		if (this.dependenciesLoaded())

		{

			dnn.dom.positioning = this; 

			this.isLoaded = true;

			dnn.loadDependencies(this.pns, this.ns);

		}

	}	

}



function __dnn_containerMouseDownDelay()

{

	var oTitle = dnn.dom.event.srcElement;

	dnn.doDelay('__dnn_dragdrop', 500, __dnn_containerMouseDown, oTitle);

}



function __dnn_containerMouseDown(oCtl)

{

	//oCtl = dnn.dom.event.srcElement;

	while (oCtl.contID == null)

	{

		oCtl = oCtl.parentNode;

		if (oCtl.tagName.toUpperCase() == 'BODY')

			return;

	}

	dnn.dom.positioning.dragCtr = oCtl;	//assumption is we can only drag one thing at a time

	oCtl.startTop = null;

	oCtl.startLeft = null;



	var oCont = dnn.dom.getById(oCtl.contID);

	if (oCont.style.position == null || oCont.style.position.length == 0)

		oCont.style.position = 'relative';

	

	dnn.dom.positioning.dragCtrDims = new dnn.dom.positioning.dims(oCont);	//store now so we aren't continually calculating

	

	if (oCont.getAttribute('_b') == null)

	{

		oCont.setAttribute('_b', oCont.style.backgroundColor); 

		oCont.setAttribute('_z', oCont.style.zIndex); 

		oCont.setAttribute('_w', oCont.style.width); 

		oCont.setAttribute('_d', oCont.style.border); 

		oCont.style.zIndex = 9999;

		oCont.style.backgroundColor = DNN_HIGHLIGHT_COLOR;

		oCont.style.border = '4px outset ' + DNN_HIGHLIGHT_COLOR;

		oCont.style.width = dnn.dom.positioning.elementWidth(oCont);

		if (dnn.dom.browser.type == dnn.dom.browser.InternetExplorer)

			oCont.style.filter = 'progid:DXImageTransform.Microsoft.Alpha(opacity=80)';

	}

}



function __dnn_bodyMouseUp()

{

	dnn.cancelDelay('__dnn_dragdrop');

	var oCtl = dnn.dom.positioning.dragCtr;

	if (oCtl != null && oCtl.dragComplete != null)

	{

		eval(oCtl.dragComplete);



		var oCont = dnn.dom.getById(oCtl.contID);



		oCont.style.backgroundColor = oCont.getAttribute('_b'); 

		oCont.style.zIndex = oCont.getAttribute('_z'); 

		oCont.style.width = oCont.getAttribute('_w'); 

		oCont.style.border = oCont.getAttribute('_d'); 

		oCont.setAttribute('_b', null); 

		oCont.setAttribute('_z', null); 

		if (dnn.dom.browser.type == dnn.dom.browser.InternetExplorer)

			oCont.style.filter = null;



	}

	

	dnn.dom.positioning.dragCtr = null;

}



function __dnn_bodyMouseMove()

{

	if (dnn.dom.positioning.dragCtr != null)

		dnn.dom.positioning.dragContainer(dnn.dom.positioning.dragCtr);

}



__dnn_m_aNamespaces[__dnn_m_aNamespaces.length] = new dnn_dom_positioning();

for (var i=__dnn_m_aNamespaces.length-1; i>=0; i--)

	__dnn_m_aNamespaces[i].loadNamespace();