// Author: Matt Kruse <matt@mattkruse.com>
// WWW: http://www.mattkruse.com/
function PopupWindow_getXYPosition(anchorname){
	var coordinates;
	if(this.type == "WINDOW"){
		coordinates = getAnchorWindowPosition(anchorname);
	}else{
		coordinates = getAnchorPosition(anchorname);
	}
	this.x = coordinates.x;
	this.y = coordinates.y;
}

function PopupWindow_setSize(width,height){
	this.width = width;
	this.height = height;
}

function PopupWindow_populate(contents){
	this.contents = contents;
	this.populated = false;
}

function PopupWindow_setUrl(url){
	this.url = url;
}

function PopupWindow_setWindowProperties(props){
	this.windowProperties = props;
}

function PopupWindow_refresh(){
	if(this.divName != null){
		if(this.use_gebi){
			document.getElementById(this.divName).innerHTML = this.contents;
		}else if(this.use_css){
			document.all[this.divName].innerHTML = this.contents;
		}else if(this.use_layers){
			var d = document.layers[this.divName];
			d.document.open();
			d.document.writeln(this.contents);
			d.document.close();
		}
	}else{
		if(this.popupWindow != null && !this.popupWindow.closed){
			if(this.url!=""){
				this.popupWindow.location.href=this.url;
			}else{
				this.popupWindow.document.open();
				this.popupWindow.document.writeln(this.contents);
				this.popupWindow.document.close();
			}
			this.popupWindow.focus();
		}
	}
}

function PopupWindow_showPopup(anchorname){
	this.getXYPosition(anchorname);
	this.x += this.offsetX;
	this.y += this.offsetY;
	if(!this.populated &&(this.contents != "")){
		this.populated = true;
		this.refresh();
	}
	if(this.divName != null){
		if(this.use_gebi){
			document.getElementById(this.divName).style.left = this.x + "px";
			document.getElementById(this.divName).style.top = this.y + "px";
			document.getElementById(this.divName).style.visibility = "visible";
		}else if(this.use_css){
			document.all[this.divName].style.left = this.x;
			document.all[this.divName].style.top = this.y;
			document.all[this.divName].style.visibility = "visible";
		}else if(this.use_layers){
			document.layers[this.divName].left = this.x;
			document.layers[this.divName].top = this.y;document.layers[this.divName].visibility = "visible";
		}
	}else{
		if(this.popupWindow == null || this.popupWindow.closed){
			if(this.x<0){
				this.x=0;
			}
			if(this.y<0){
				this.y=0;
			}
			if(screen && screen.availHeight){
				if((this.y + this.height) > screen.availHeight){
					this.y = screen.availHeight - this.height;
				}
			}
			if(screen && screen.availWidth){
				if((this.x + this.width) > screen.availWidth){
					this.x = screen.availWidth - this.width;
				}
			}
			var avoidAboutBlank = window.opera ||( document.layers && !navigator.mimeTypes['*']) || navigator.vendor == 'KDE' ||( document.childNodes && !document.all && !navigator.taintEnabled);
			this.popupWindow = window.open(avoidAboutBlank?"":"about:blank","window_"+anchorname,this.windowProperties+",width="+this.width+",height="+this.height+",screenX="+this.x+",left="+this.x+",screenY="+this.y+",top="+this.y+"");
		}
		this.refresh();
	}
}

function PopupWindow_hidePopup(){
	if(this.divName != null){
		if(this.use_gebi){
			document.getElementById(this.divName).style.visibility = "hidden";
		}else if(this.use_css){
			document.all[this.divName].style.visibility = "hidden";
		}else if(this.use_layers){
			document.layers[this.divName].visibility = "hidden";
		}
	}else{
		if(this.popupWindow && !this.popupWindow.closed){
			this.popupWindow.close();
			this.popupWindow = null;
		}
	}
}

function PopupWindow_isClicked(e){
	if(this.divName != null){
		if(this.use_layers){
			var clickX = e.pageX;
			var clickY = e.pageY;
			var t = document.layers[this.divName];
			if((clickX > t.left) &&(clickX < t.left+t.clip.width) &&(clickY > t.top) &&(clickY < t.top+t.clip.height)){
				return true;
			}else{
				return false;
			}
		}else if(document.all){
			var t = window.event.srcElement;
			while(t.parentElement != null){
				if(t.id==this.divName){
					return true;
				}
				t = t.parentElement;
			}return false;
		}else if(this.use_gebi && e){
			var t = e.originalTarget;
			if(t.parentNode != undefined){
				while(t.parentNode != null){
					if(t.id==this.divName){
						return true;
					}
					t = t.parentNode;
				}
			}
			return false;
		}
		return false;
	}
	return false;
}

function PopupWindow_hideIfNotClicked(e){
	if(this.autoHideEnabled && !this.isClicked(e)){
		this.hidePopup();
	}
}

function PopupWindow_autoHide(){
	this.autoHideEnabled = true;
}

function PopupWindow_hidePopupWindows(e){
	for(var i=0;i<popupWindowObjects.length;i++){
		if(popupWindowObjects[i] != null){
			var p = popupWindowObjects[i];p.hideIfNotClicked(e);
		}
	}
}

function PopupWindow_attachListener(){
	if(document.layers){
		document.captureEvents(Event.MOUSEUP);
	}
	window.popupWindowOldEventListener = document.onmouseup;
	if(window.popupWindowOldEventListener != null){
		document.onmouseup = new Function("window.popupWindowOldEventListener();PopupWindow_hidePopupWindows();");
	}else{
		document.onmouseup = PopupWindow_hidePopupWindows;
	}
}

function PopupWindow(){
	if(!window.popupWindowIndex){
		window.popupWindowIndex = 0;
	}
	if(!window.popupWindowObjects){
		window.popupWindowObjects = new Array();
	}
	if(!window.listenerAttached){
		window.listenerAttached = true;
		PopupWindow_attachListener();
	}
	this.index = popupWindowIndex++;
	popupWindowObjects[this.index] = this;
	this.divName = null;
	this.popupWindow = null;
	this.width=0;
	this.height=0;
	this.populated = false;
	this.visible = false;
	this.autoHideEnabled = false;
	this.contents = "";
	this.url="";
	this.windowProperties="toolbar=no,location=no,status=no,menubar=no,scrollbars=auto,resizable,alwaysRaised,dependent,titlebar=no";
	if(arguments.length>0){
		this.type="DIV";
		this.divName = arguments[0];
	}else{
		this.type="WINDOW";
	}
	this.use_gebi = false;
	this.use_css = false;
	this.use_layers = false;
	if(document.getElementById){
		this.use_gebi = true;
	}else if(document.all){
		this.use_css = true;
	}else if(document.layers){
		this.use_layers = true;
	}else{
		this.type = "WINDOW";
	}
	this.offsetX = 0;
	this.offsetY = 0;
	this.getXYPosition = PopupWindow_getXYPosition;
	this.populate = PopupWindow_populate;
	this.setUrl = PopupWindow_setUrl;
	this.setWindowProperties = PopupWindow_setWindowProperties;
	this.refresh = PopupWindow_refresh;
	this.showPopup = PopupWindow_showPopup;
	this.hidePopup = PopupWindow_hidePopup;
	this.setSize = PopupWindow_setSize;
	this.isClicked = PopupWindow_isClicked;
	this.autoHide = PopupWindow_autoHide;
	this.hideIfNotClicked = PopupWindow_hideIfNotClicked;
}