var type;

        type="unknown";


	//for more see http://www.webconcerns.co.uk/javascript/dhtml/dhtml_page.asp
	
	//check if IE4 or upwards
	if (document.all) type="IE4"
	//check if netscape 4 or 5
	if (document.layers) type="NN4"
	//check if opera
	if (navigator.userAgent.indexOf("Opera")!=-1 && document.getElementById) type="OP";
	//check if Mozila e.g. Netscape 6 upwards
	if (!document.all && document.getElementById) type="MO";

	function layerWrite(txt,layerName){
		
		//Concatenating will null string appread to be necessary (to force converstion to string type?)
	
		switch (type){
			case "IE4": 				
				document.all[layerName].innerHTML = txt + ' ';
				break;
			case "NN4": 
				document.layers[layerName].document= txt + ' ';
				break;
			case "MO":
				document.getElementById(layerName).innerHTML= txt + ' ';
				break;
			case "OP":
				document.getElementById(layerName).innerHTML= txt + ' ';
				break;
		}	

		
	}

	function layerShow(layerName){
		
		switch (type){
			case "IE4": 
				document.all[layerName].style.visibility="visible";
				break;
			case "NN4": 
				document.layers[layerName].visibility="visible";
				break;
			case "MO":
				document.getElementById(layerName).style.visibility="visible";
				break;
			case "OP":
				document.getElementById(layerName).style.visibility="visible";
				break;
		}
		
	}	

	function layerHide(layerName){
		
		
		switch (type){
			case "IE4": 
				document.all[layerName].style.visibility="hidden";
				break;
			case "NN4": 
				document.layers[layerName].visibility="hidden";
				break;
			case "MO":
				document.getElementById(layerName).style.visibility="hidden";
				break;
			case "OP":
				document.getElementById(layerName).style.visibility="hidden";
				break;
		}
				

	}
	
	function layerPlace(layerName,px,py){
		
		switch (type){
			case "IE4": 
				document.all[layerName].style.left = px;
				document.all[layerName].style.top = py;
				break;
			case "NN4": 
				document.layers[layerName].left = px;
				document.layers[layerName].top = py;
				break;
			case "MO":
				document.getElementById(layerName).style.left = px;
				document.getElementById(layerName).style.top = py;
				break;
			case "OP":
				document.getElementById(layerName).style.left = px;
				document.getElementById(layerName).style.top = py;
				break;
		}
				

	}

function Browser() {

  var ua, s, i;

  this.isIE    = false;
  this.isNS    = false;
  this.version = null;

  ua = navigator.userAgent;

  s = "MSIE";
  if ((i = ua.indexOf(s)) >= 0) {
    this.isIE = true;
    this.version = parseFloat(ua.substr(i + s.length));
    return;
  }

  s = "Netscape6/";
  if ((i = ua.indexOf(s)) >= 0) {
    this.isNS = true;
    this.version = parseFloat(ua.substr(i + s.length));
    return;
  }

  // Treat any other "Gecko" browser as NS 6.1.

  s = "Gecko";
  if ((i = ua.indexOf(s)) >= 0) {
    this.isNS = true;
    this.version = 6.1;
    return;
  }
  
}

var browser = new Browser();

// Global object to hold drag information.

var dragObj = new Object();
dragObj.zIndex = 0;

function dragStart(event, element) {

  var el;
  var x, y;

  // If an element id was given, find it. Otherwise use the element being
  // clicked on.

  if (element)
  
    dragObj.elNode = element;
  
  else {
  
    if (browser.isIE)
      dragObj.elNode = window.event.srcElement;
  
    if (browser.isNS)
      dragObj.elNode = event.target;

    // If this is a text node, use its parent element.

    if (dragObj.elNode.nodeType == 3)
      dragObj.elNode = dragObj.elNode.parentNode;
      
  }

  // Get cursor position with respect to the page.

  if (browser.isIE) {
    x = window.event.clientX + document.documentElement.scrollLeft
      + document.body.scrollLeft;
    y = window.event.clientY + document.documentElement.scrollTop
      + document.body.scrollTop;
  }
  if (browser.isNS) {
    x = event.clientX + window.scrollX;
    y = event.clientY + window.scrollY;
  }

  // Save starting positions of cursor and element.
    
  if (element){
  	x= x - parseInt(element.style.width)
  }  
  
  dragObj.cursorStartX = x;
  dragObj.cursorStartY = y;
  dragObj.elStartLeft  = parseInt(dragObj.elNode.style.left, 10);
  dragObj.elStartTop   = parseInt(dragObj.elNode.style.top,  10);

  if (isNaN(dragObj.elStartLeft)) dragObj.elStartLeft = 0;
  if (isNaN(dragObj.elStartTop))  dragObj.elStartTop  = 0;

  // Update element's z-index.

   dragObj.elNode.style.zIndex = ++dragObj.zIndex;

  // Capture mousemove and mouseup events on the page.

  if (browser.isIE) {
    document.attachEvent("onmousemove", dragGo);
    document.attachEvent("onmouseup",   dragStop);
    window.event.cancelBubble = true;
    window.event.returnValue = false;
  }
  if (browser.isNS) {
    document.addEventListener("mousemove", dragGo,   true);
    document.addEventListener("mouseup",   dragStop, true);
    event.preventDefault();
  }
  
}

function dragGo(event) {

  var x, y;

  // Get cursor position with respect to the page.

  if (browser.isIE) {
    x = window.event.clientX + document.documentElement.scrollLeft
      + document.body.scrollLeft;
    y = window.event.clientY + document.documentElement.scrollTop
      + document.body.scrollTop;
  }
  if (browser.isNS) {
    x = event.clientX + window.scrollX;
    y = event.clientY + window.scrollY;
  }

  // Move drag element by the same amount the cursor has moved.

  dragObj.elNode.style.left = (dragObj.elStartLeft + x - dragObj.cursorStartX) + "px";
  dragObj.elNode.style.top  = (dragObj.elStartTop  + y - dragObj.cursorStartY) + "px";

  if (browser.isIE) {
    window.event.cancelBubble = true;
    window.event.returnValue = false;
  }
  
  if (browser.isNS)
    event.preventDefault();
}

function dragStop(event) {

  // Stop capturing mousemove and mouseup events.

  dragObj.elNode.style.left = "0px";
  dragObj.elNode.style.top  = "0px";

  lastDrop=dragObj.elNode
  
  if (browser.isIE) {
    document.detachEvent("onmousemove", dragGo);
    document.detachEvent("onmouseup",   dragStop);
  }
  
  if (browser.isNS) {
    document.removeEventListener("mousemove", dragGo,   true);
    document.removeEventListener("mouseup",   dragStop, true);
  }
  
}



//-->

// Layer Move Script by Brainjar from www.brainjar.com/dhtml/drag

// Determine browser and version.
function Browser() {
	var ua, s, i;

	this.isIE    = false;
	this.isNS    = false;
	this.version = null;

	ua = navigator.userAgent;

	s = "MSIE";
	if ((i = ua.indexOf(s)) >= 0) {
		this.isIE = true;
		this.version = parseFloat(ua.substr(i + s.length));
		return;
	}
	s = "Netscape6/";
	if ((i = ua.indexOf(s)) >= 0) {
		this.isNS = true;
		this.version = parseFloat(ua.substr(i + s.length));
		return;
	}
	// Treat any other "Gecko" browser as NS 6.1.
	s = "Gecko";
	if ((i = ua.indexOf(s)) >= 0) {
		this.isNS = true;
		this.version = 6.1;
		return;
	}
}
var browser = new Browser();

// Global object to hold drag information.
var dragObj = new Object();
dragObj.zIndex = 0;

function dragStart(event, id) {
	var el;
	var x, y;

	// If an element id was given, find it. Otherwise use the element being
	// clicked on.
	if (id)
		dragObj.elNode = document.getElementById(id);
	else {
		if (browser.isIE)
			dragObj.elNode = window.event.srcElement;
		if (browser.isNS)
			dragObj.elNode = event.target;
			// If this is a text node, use its parent element.
		if (dragObj.elNode.nodeType == 3)
			dragObj.elNode = dragObj.elNode.parentNode;
	}

	// Get cursor position with respect to the page.
	if (browser.isIE) {
		x = window.event.clientX + document.documentElement.scrollLeft
			+ document.body.scrollLeft;
		y = window.event.clientY + document.documentElement.scrollTop
			+ document.body.scrollTop;
	}
	if (browser.isNS) {
		x = event.clientX + window.scrollX;
		y = event.clientY + window.scrollY;
	}

	// Save starting positions of cursor and element.
	dragObj.cursorStartX = x;
	dragObj.cursorStartY = y;
	dragObj.elStartLeft  = parseInt(dragObj.elNode.style.left, 10);
	dragObj.elStartTop   = parseInt(dragObj.elNode.style.top,  10);

	if (isNaN(dragObj.elStartLeft)) dragObj.elStartLeft = 0;
	if (isNaN(dragObj.elStartTop))  dragObj.elStartTop  = 0;

	// Update element's z-index.
	dragObj.elNode.style.zIndex = ++dragObj.zIndex;

	// Capture mousemove and mouseup events on the page.
	if (browser.isIE) {
		document.attachEvent("onmousemove", dragGo);
		document.attachEvent("onmouseup",   dragStop);
		window.event.cancelBubble = true;
		window.event.returnValue = false;
	}
	if (browser.isNS) {
		document.addEventListener("mousemove", dragGo,   true);
		document.addEventListener("mouseup",   dragStop, true);
		event.preventDefault();
	}
}

function dragGo(event) {
	var x, y;

	// Get cursor position with respect to the page.
	if (browser.isIE) {
		x = window.event.clientX + document.documentElement.scrollLeft
			+ document.body.scrollLeft;
		y = window.event.clientY + document.documentElement.scrollTop
			+ document.body.scrollTop;
	}
	if (browser.isNS) {
		x = event.clientX + window.scrollX;
		y = event.clientY + window.scrollY;
	}

	// Move drag element by the same amount the cursor has moved.
	dragObj.elNode.style.left = (dragObj.elStartLeft + x - dragObj.cursorStartX) + "px";
	dragObj.elNode.style.top  = (dragObj.elStartTop  + y - dragObj.cursorStartY) + "px";

	if (browser.isIE) {
		window.event.cancelBubble = true;
		window.event.returnValue = false;
	}
	if (browser.isNS)
		event.preventDefault();
	}

function dragStop(event) {
	// Stop capturing mousemove and mouseup events.
	if (browser.isIE) {
		document.detachEvent("onmousemove", dragGo);
		document.detachEvent("onmouseup",   dragStop);
	}
	if (browser.isNS) {
		document.removeEventListener("mousemove", dragGo,   true);
		document.removeEventListener("mouseup",   dragStop, true);
	}
}