function calcLayoutWidth() {
	var MaxWidth = 999;
	var MinWidth = 800;
	var SliderWidth = 18;

	var LayoutWidth = MaxWidth;
	if(window.document.body.clientWidth < MaxWidth) {
		if(window.document.body.clientWidth > MinWidth)
			LayoutWidth = (window.document.body.clientWidth - SliderWidth);
		else
			LayoutWidth = MinWidth - SliderWidth;
	}	
	
	return LayoutWidth - 2;
}

function calcBrandingImageWidth() {
	var MaxWidth = 999;
	var MinWidth = 800;
	var SliderWidth = 18;

	var LayoutWidth = MaxWidth;
	if(window.document.body.clientWidth < 1020) {
		if(window.document.body.clientWidth > MinWidth)
			LayoutWidth = (window.document.body.clientWidth - SliderWidth);
		else
			LayoutWidth = MinWidth - SliderWidth;
	}
	
	return LayoutWidth - 2;
}

function calcContentAreaWidth(LeftMenuWidth) {

	if(document.getElementById('pnlRightBarPanel') == null & document.getElementById('pnlLeftBarPanel') == null)
	{
		return calcLayoutWidth();
	}
	
	if(document.getElementById('pnlRightBarPanel') == null)
	{
		return calcLayoutWidth() - LeftMenuWidth;
	}

	if(document.getElementById('pnlLeftBarPanel') == null)
	{
		return calcLayoutWidth() - LeftMenuWidth;
	}
	
	return calcLayoutWidth() - (2*LeftMenuWidth);
}