//------------------------------------------------------------------------------------
//
//	 Purpose:			Rolling Thunder Campaign
//	 Description:		Cross-platform window open code
//	 Copyright:			Andrew Dunbar: Australian Indigenous HealthInfoNet
//						http://www.healthinfonet.ecu.edu.au
//	 Created:			02-10-01
//	 Modified:			
//
//------------------------------------------------------------------------------------

// This function opens a new popup window depending on the input options

	function openWindow(winName,address,winWidth,winHeight,winOptions){
		
		//Internet Explorer
		var LeftPosition = (screen.width)/2 -(winWidth/2);
		var TopPosition = (screen.height)/2 -(winHeight/2 + 50); // "+50" is the area allocated for toolbars etc
		
		//Netscape Navigator
		var ScreenXPosition = (screen.width/2)-(winWidth/2);
		var ScreenYPosition = (screen.height/2)-(winHeight/2 + 50); // "+50" is the area allocated for toolbars etc

		//If the window being requested will fit in the available screen width and screen height
		if (screen.width > winWidth || screen.height > winHeight) {

		//Creates a new window instance
		var whandle = window.open(address, winName,'width='+winWidth+',height='+winHeight+',top='+TopPosition+',left='+LeftPosition+',screenX='+ScreenXPosition+',screenY='+ScreenYPosition+','+winOptions+'')

		//Draws the focus of the browser to the new window
		whandle.focus()
	
		}
		
		else {
	
		//Creates a nerw window instance
		var whandle = window.open(address, winName,'width='+winWidth+',height='+winHeight+',top='+(TopPosition-50)+',left='+(LeftPosition-50)+',screenX='+(ScreenXPosition-50)+',screenY='+(ScreenYPosition-50)+','+winOptions+'')
		
		//Draws the focus of the browser to the new window
		whandle.focus()

		}
		

	}