function viewport()
{
	var viewportwidth;
	var viewportheight;
	if(typeof window.innerWidth != 'undefined')
	{
		viewportwidth = window.innerWidth;
		viewportheight = window.innerHeight;
		if(viewportheight<document.body.scrollHeight)
		{
			viewportwidth = viewportwidth-17;
		}
	}
	
	
	else if(typeof document.documentElement != 'undefined'
	&& typeof document.documentElement.clientWidth !=
	'undefined' && document.documentElement.clientWidth != 0)
	{
		viewportwidth = document.documentElement.clientWidth;
		viewportheight = document.documentElement.clientHeigh;
	}
	else
	{
		viewportwidth = document.getElementsByTagName('body')[0].clientWidth;
		viewportheight = document.getElementsByTagName('body')[0].clientHeight;
	}
	return Array(viewportwidth,viewportheight);
}

function contentwidth()
{
	var cwidth = "690px";
	var vport = viewport();
	if((vport[0]*0.9)>1300)
	{
		cwidth = "1040px";
	}
	else if((vport[0]*0.9)<970)
	{
		cwidth = "710px";
	}
	else
	{
		cwidth = (vport[0]*0.9-260)+"px";
	}
	document.getElementById('content').style.width = cwidth;
}