/*
	Name:		Scott Ash Window Resize
	Type:		Object
	Created:	01/10/2005
	Modified:	01/10/2005
	Version:	1.0
	Author:		Scott A. Ash
	Copyright:	Scott Ash
	Functions:	set()
				tell()
				resize()
				
				.init():
				This sets the object width and height attributes according to the current calling window
				size. This function also sets the DOM variable for the tell() function. The DOM variable 
				holds a string value relating to the Document Object Model method used by the calling browser 
				to determine the window size.
				
				.update():
				This function sets the current browser window to the new size specified. The call to this 
				function must include both height and width or a default value of 800x600 will be used, respectively.
				
				.tell();
				This returns an array holding the width, height and finally the DOM variable described above.
					
	Uses:		solo
	Required:	This object must be initialized in the master site script or page head script before 
				being used.
				
	Settings:	None
*/


function sa_window_resize()
{
	
	// properties
	this.wide;
	this.high;
	this.dom;
	
	// methods
	this.init = init;
	this.update = update;
	this.tell = tell;
	
	// constructor

	function init()
	{
		// set only legal properties of object
		if(window.innerWidth)
		{
			this.wide = window.innerWidth;
			this.high = window.innerHeight;
			this.dom = "window.innerWidth/Height";
		}else if(document.body)
		{
			this.wide = document.body.clientWidth;
			this.high = document.body.clientHeight;
			this.dom = "document.body.clientWidth/Height";
		}else if (document.documentElement)
		{
			this.wide = document.documentElement.clientWidth;
			this.high = document.documentElement.clientHeight;
			this.dom = "document.documentElement.clientWidth/Height";
		}else if (document.pageXOffset)
		{
			this.wide = document.pageXOffset;
			this.high = document.pageYOffset;
			this.dom = "document.pageX/YOffset";
		}else
		{
			this.wide = 800;
			this.high = 600;
			this.dom = "Unknown. Default set at 800x600.";
		}
	}

	function update(w,h)
	{
		// sets the width and height variables of the object
		
		this.wide = parseInt(w);
		this.high = parseInt(h);
		
		if(this.wide > 0)	// resize only if received width is valid
		{
			if(window.innerWidth)
			{
				window.innerWidth = this.wide;
			}else if(document.body)
			{
				document.body.clientWidth = this.wide;
			}else if (document.documentElement)
			{
				document.documentElement.clientWidth = this.wide;
			}else if (document.pageXOffset)
			{
				document.pageXOffset = this.wide;
			}else
			{
				// unknown window sizing method
			}
		}
		
		if(this.high > 0)	// resize only if received height is valid
		{
			if(window.innerWidth)
			{
				window.innerHeight = this.high;
				this.dom = "window.innerWidth/Height";
			}else if(document.body)
			{
				document.body.clientHeight = this.high;
				this.dom = "document.body.clientWidth/Height";
			}else if (document.documentElement)
			{
				document.documentElement.clientHeight = this.high;
				this.dom = "document.documentElement.clientWidth/Height";
			}else if (document.pageXOffset)
			{
				document.pageYOffset = this.high;
				this.dom = "document.pageX/YOffset";
			}else
			{
				this.dom = "Unknown. Default set at 800x600.";
			}
		}
	}
	
	function tell()
	{
		// return array with window width, height and DOM method browser uses to determine window size
		myArray = new Array(this.wide, this.high, this.dom);
		return myArray;
	}
}