function showStndSizeChart() {
		
	// make sure stndSizeChart is visible
	document.getElementById("stndSizeChart").style.display = "block";
	
	// Hide the link standard size chart title
	document.getElementById("stndTitle").style.display = "none";
	
	// Show the standard size chart title with Hide link
	document.getElementById("stndTitleHide").style.display = "block";
			
}

function hideStndSizeChart() {
		
	// make sure stndSizeChart is hidden
	document.getElementById("stndSizeChart").style.display = "none";
	
	// Show the link standard size chart title
	document.getElementById("stndTitle").style.display = "block";
	
	// Hide the standard size chart title with Hide link
	document.getElementById("stndTitleHide").style.display = "none";
			
}

function swapInSizeContent(chart) { 
	
	// hide all size chart content
	document.getElementById("inches").style.display = "none";
	document.getElementById("metric").style.display = "none";
	
	// display the content for passed in id
	document.getElementById(chart).style.display = "block";
	
}