// Window opener functions  v1.0.6

// http://www.dithered.com/javascript/window/index.html

// code by Chris Nott (chris@NOSPAMdithered.com - remove NOSPAM)



/*******************************************************************************

	Popup Window openers

*******************************************************************************/



var winReference = null;





// Open a window at a given position on the screen

function openPositionedWindow(url, name, width, height, x, y, status, scrollbars, moreProperties, openerName) {

	

	// ie 4.5 and 5.0 mac - windows are 2 pixels too short; if a statusbar is used, the window will be an additional 15 pixels short

	var agent = navigator.userAgent.toLowerCase();

	if (agent.indexOf("mac") != -1 && agent.indexOf("msie") != -1 && (agent.indexOf("msie 4") != -1 || agent.indexOf("msie 5.0") != -1) ) {

		height += (status) ? 17 : 2;

	}



	// Adjust width if scrollbars are used (pc places scrollbars inside the content area; mac outside) 

	width += (scrollbars != '' && scrollbars != null && agent.indexOf("mac") == -1) ? 16 : 0;



	var properties = 'width=' + width + ',height=' + height + ',screenX=' + x + ',screenY=' + y + ',left=' + x + ',top=' + y + ((status) ? ',status' : '') + ',scrollbars' + ((scrollbars) ? '' : '=no') + ((moreProperties) ? ',' + moreProperties : '');

	var reference = openWindow(url, name, properties, openerName);

	

	// resize window in ie if we can resize in ns; very messy

	// commented out because openPositionedWindow() doesn't set the resizable attribute

	// left in for reference

	/*if (resizable && agent.indexOf("msie") != -1) {

		if (agent.indexOf("mac") != -1) {

			height += (status) ? 15 : 2;

			if (parseFloat(navigator.appVersion) > 5) width -= 11;

		}

		else {

			height += (status) ? 49 : 31;

			width += 13;

		}

		setTimeout('if (reference != null && !reference.closed) reference.resizeTo(' + width + ',' + height + ');', 150);

	}*/



	return reference;

}





// Open a window at the center of the screen

function openCenteredWindow(url, name, width, height, status, scrollbars, moreProperties, openerName) {

	var x, y = 0;

	if (screen) {

      x = (screen.availWidth - width) / 2;

	   y = (screen.availHeight - height) / 2;

   }

	if (!status) status = '';

	if (!openerName) openerName = '';

	var reference = openPositionedWindow(url, name, width, height, x, y, status, scrollbars, moreProperties, openerName);

	return reference;

}	





// Open a window at the center of the parent window

function openCenteredOnOpenerWindow(url, name, width, height, status, scrollbars, moreProperties, openerName) {

	var centerX = 0;

   var centerY = 0;

   if (window.screenX != null && window.outerWidth) {

      centerX = window.screenX + (window.outerWidth / 2);

      centerY = window.screenY + (window.outerHeight / 2);

   }

   else if (window.screenLeft) {

      if (document.documentElement) {

         centerX = window.screenLeft + (document.documentElement.offsetWidth / 2);

         centerY = window.screenTop + (document.documentElement.offsetHeight / 2);

      }

      else if (document.body && document.body.offsetWidth) {

         centerX = window.screenLeft + (document.body.offsetWidth / 2);

         centerY = window.screenTop + (document.body.offsetHeight / 2);

      }

   }

   

   if (centerX == 0) {

      openCenteredWindow(url, name, width, height, status, scrollbars, moreProperties, openerName);

   }

   var x = parseInt(centerX - (width / 2));

   var y = parseInt(centerY - (height / 2));

	if (!status) status = '';

	if (!openerName) openerName = '';

	var reference = openPositionedWindow(url, name, width, height, x, y, status, scrollbars, moreProperties, openerName);

	return reference;

}	





// Open a full-screen window (different from IE's fullscreen option)

function openMaxedWindow(url, name, scrollbars, openerName) {

	var x, y = 0;

	var width  = 600;

	var height = 800;

	if (screen) {

      if (screen.availLeft) {

         x = screen.availLeft;

         y = screen.availTop;

      }

      width  = screen.availWidth - 6;

	   height = screen.availHeight - 29;

   }

	var reference = openPositionedWindow(url, name, width, height, x, y, false, scrollbars, openerName);

	return reference;

}





// Open a full-chrome (all GUI elements) window

// This is like using a target="_blank" in a normal link but allows focussing the window

function openFullChromeWindow(url, name, openerName) {

	return openWindow(url, name, 'directories,location,menubar,resizable,scrollbars,status,toolbar');

}





// Open a sized full-chrome (all GUI elements) window 

function openSizedFullChromeWindow(url, name, width, height, openerName) {

	return openCenteredWindow(url, name, width, height, true, true, 'directories,location,menubar,resizable,toolbar', openerName)

}





// Core utility function that actually creates the window and gives focus to it

function openWindow(url, name, properties, openerName) {



	// ie4.x pc can't give focus to windows containing documents from a different domain

	// in this case, initially load a local interstisial page to allow focussing before loading final url

	var agent = navigator.userAgent.toLowerCase();

	if (agent.indexOf("msie") != -1 && parseInt(navigator.appVersion) == 4 && agent.indexOf("msie 5") == -1 && agent.indexOf("msie5") == -1 && agent.indexOf("win") != -1 && url.indexOf('http://') == 0) {

		winReference = window.open('about:blank', name, properties);

		

		setTimeout('if (winReference && !winReference.closed) winReference.location.replace("' + url + '")', 300);

	}

	else {

		winReference = window.open(url, name, properties);

	}



	// ie doesn't like giving focus immediately (to new window in 4.5 on mac; to existing ones in 5 on pc)

	setTimeout('if (winReference && !winReference.closed) winReference.focus()', 200);

	

	if (openerName) self.name = openerName;

	return winReference;

}





/*******************************************************************************

	Modal Dialog controls

*******************************************************************************/



// Close a dialog

// Call from onunload event handler of any page that can create a dialog

function closeDialog(dialog) {

	if (dialog && dialog.closed != true) dialog.close();

}





// Close parent popup

// Call from onload event handler of any page that could be created from a dialog

function closeParentDialog() {

	if (top.opener && isWindowPopup(top.opener)) {

		root = top.opener.top.opener;

		top.opener.close();

		top.opener = root;

	}

}





// Check if a window is a popup

function isWindowPopup(win) {

	return ((win.opener) ? true : false);

}