function contentWidthSmall()
{		var s= document.getElementById('content_single');
		s.style.margin = "0 400px";}

function contentWidthMedium()
{		var m= document.getElementById('content_single');
		m.style.margin = "0 200px";}

function contentWidthLarge()
{		var l= document.getElementById('content_single');
		l.style.margin = "0";}