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();
var dragObj = new Object();
dragObj.zIndex = 0;
var isResize=false;
function dragStart(event, id,type) {
  var el;
  var x, y;
		if(type=="resize") isResize=true;  
  dragObj.elNode = windows[id];//document.getElementById(id);


  // 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);
  oldx=x;
		oldy=y;
  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();
  }
}

var oldx,oldy;
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.
  if(!isResize)
  {
   tryY=dragObj.elStartTop  + y - dragObj.cursorStartY;
   var pY = browser.isNS ? pageYOffset : document.body.scrollTop;
		//	alert("Y: "+tryY+" a "+pY+" b "+dragObj.elNode.style.height+" c "+document.body.clientHeight);
   if(tryY>pY && (!dragObj.elNode.style.height && tryY-pY+30<document.body.clientHeight  || parseInt(dragObj.elNode.style.height)+tryY-pY<document.body.clientHeight))
   {
    dragObj.elNode.y=tryY;
    dragObj.elNode.startY=dragObj.elNode.y-(browser.isNS ? pageYOffset : document.body.scrollTop);
   }
   tryX=dragObj.elStartLeft + x - dragObj.cursorStartX;
			//alert("X: "+tryX+" b "+(parseInt(dragObj.elNode.style.width)+tryX)+" c "+document.body.clientWidth);
   if(tryX>0 && (!dragObj.elNode.style.width || parseInt(dragObj.elNode.style.width)+tryX<document.body.clientWidth))
   {
    dragObj.elNode.startX=tryX;
    dragObj.elNode.x=dragObj.elNode.startX;
   }
  }
  else
   resize(dragObj.elNode,(x - oldx),(y - oldy));
		oldx=x;
		oldy=y;
  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);
  }
		runCustomStop(dragObj.elNode);
	 isResize=false;
	// makeHttpRequest("http://www.brokenmetal.net/pageincludes/helperfiles/runningSmallScripts.php?helpX="+helpwin.startX+"&helpY="+helpwin.startY);
}
	var d = document;
	function init(id,startY,startX)
	{
		var el=d.getElementById?d.getElementById(id):d.all?d.all[id]:d.layers[id];
		if(d.layers)
		el.style=el;
		el.x = startX;
	    el.y = startY;
	    el.startY=startY;
		el.startX=startX
		el.id=id;
		return el;
	}
	window.stayOnScreen=function ()
	{ 
		 var pY = browser.isNS ? pageYOffset : document.body.scrollTop;
			for(i=0;i<windows.length;i++)
			{
			 if(!windows[i].stopWin && !windows[i].tack)
  		{
		   windows[i].y += (pY + windows[i].startY - windows[i].y)/15;
		   windows[i].style.left=windows[i].x;
		   windows[i].style.top=windows[i].y;
				}
			}
			setTimeout("stayOnScreen()", 50);
	}
	
	
	function makeHttpRequest(url, callback_function, return_xml)
{
   var http_request = false;
			http_request=getAjax();

   if (!http_request) {
       //alert('Unfortunatelly you browser doesn\'t support this feature.');
       return false;
   }
   http_request.onreadystatechange = function() {
       if (http_request.readyState == 4) { 
           if (http_request.status == 200) {	
											    if(!isNaN(callback_function)) {
																				if (return_xml) {
																								eval(callback_function + '(http_request.responseXML)');
																				} else {
																				
																								eval(callback_function + '(http_request.responseText)');
																				}
															}
           } else {
              // alert('There was a problem with the request.(Code: ' + http_request.status + ')');
           }
       }
   }
   http_request.open('GET', url, true);
   http_request.send(null);
}

		function getAjax()
		{
   var xmlhttp;
		 if (window.XMLHttpRequest) // Mozilla, Safari,...
			{ 
			 xmlhttp = new XMLHttpRequest();
			 if (xmlhttp.overrideMimeType) 
				   xmlhttp.overrideMimeType('text/html');
		  } 
		 	else if (window.ActiveXObject) // IE
				{ 
			   try 
						{
				   xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
			   } catch (e) 
						{
				   try 
							{
					   xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
				   } catch (e) {}
			   }
		   }            
     return xmlhttp;
    }