////////////////////////////////////////////////////////////////
// Helper.js
////////////////////////////////////////////////////////////////

// style.display = ""
function Show(ID)
{
    var window = document.getElementById(ID);
    window.style.display = "";
}

// style.display = "none"
function Close(ID)
{
    var window = document.getElementById(ID);
    window.style.display = "none";

}

//
// GetPageScrollArray()
// Returns array with x,y page scroll values.
// Core code from - quirksmode.org
//
function GetPageScrollArray()
{
	var yScroll, xScroll;
	if (self.pageYOffset) 
	{
		yScroll = self.pageYOffset;
	} 
	else if (document.documentElement && document.documentElement.scrollTop)
	{	 // Explorer 6 Strict
		yScroll = document.documentElement.scrollTop;
	} 
	else if (document.body) 
	{   // all other Explorers
		yScroll = document.body.scrollTop;
	}

    if(window.pageXOffset)
    { 
	    xScroll=window.pageXOffset 
    } 
    else if(document.documentElement && document.documentElement.scrollLeft)
    { 
	    xScroll=document.documentElement.scrollLeft; 
    } 
    else if(document.body)
    { 
	    xScroll=document.body.scrollLeft; 
    }

	var arrayPageScroll = new Array(xScroll, yScroll) 
	return arrayPageScroll;
}

//
// GetPageSizeArray()
// Returns array with page width, height and window width, height
// Core code from - quirksmode.org
//
function GetPageSizeArray()
{
	var xScroll, yScroll;
	
	if (window.innerHeight && window.scrollMaxY) 
	{	
		xScroll = document.body.scrollWidth;
		yScroll = window.innerHeight + window.scrollMaxY;
	} 
	else if (document.body.scrollHeight > document.body.offsetHeight)
	{   // all but Explorer Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} 
	else 
	{   // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}
	
	var windowWidth, windowHeight;
	if (self.innerHeight) 
	{	// all except Explorer
		windowWidth = self.innerWidth;
		windowHeight = self.innerHeight;
	} 
	else if (document.documentElement && document.documentElement.clientHeight) 
	{   // Explorer 6 Strict Mode
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	} 
	else if (document.body) 
	{   // other Explorers
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}	
	
	// for small pages with total height less then height of the viewport
	if(yScroll < windowHeight)
	{
		pageHeight = windowHeight;
	} 
	else 
	{ 
		pageHeight = yScroll;
	}

	// for small pages with total width less then width of the viewport
	if(xScroll < windowWidth)
	{	
		pageWidth = windowWidth;
	} 
	else 
	{
		pageWidth = xScroll;
	}

	arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) 
	return arrayPageSize;
}