function show_hide_div(id)
{
	obj = document.getElementById(id).style.display;

	if(obj != 'none')
	{
		document.getElementById(id).style.display = 'none';
	}
	else
	{
		document.getElementById(id).style.display = 'inline';
	}
}

function alertSize() 
{
	var myWidth = 0;
	var myHeight = 0;

	if( typeof( window.innerWidth ) == 'number' ) 
	{
		//Non-IE
		myWidth = window.innerWidth;
		myHeight = window.innerHeight;
	} 
	else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) 
	{
		//IE 6+ in 'standards compliant mode'
		myWidth = document.documentElement.clientWidth;
		myHeight = document.documentElement.clientHeight;
	} 
	else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) 
	{
		//IE 4 compatible
		myWidth = document.body.clientWidth;
		myHeight = document.body.clientHeight;
	}

	window.alert( 'Width = ' + myWidth );
	window.alert( 'Height = ' + myHeight );
}