function adjustRatio(img)
{
	var height = getInnerHeight();
	var width = getInnerWidth();

//alert(height);
	if(height > img.height)
    {
        img.style.height = '100%';
        img.style.width = 'auto';
    }
    else if(width > img.width)
    {
        img.style.width = '100%';
        img.style.height = 'auto';
    }
}

function getInnerHeight()
{
	myHeight = 0;
	if( typeof( window.innerHeight ) == 'number' )
	{
		//Non-IE
		myHeight = window.innerHeight;
	}
	else if( document.documentElement && document.documentElement.clientHeight )
	{
		//IE 6+ in 'standards compliant mode'
		myHeight = document.documentElement.clientHeight;
	}
	else if( document.body && document.body.clientHeight )
	{
		//IE 4 compatible
		myHeight = document.body.clientHeight;
	}
	return myHeight;
}

function getInnerWidth()
{
	myWidth = 0;
	if( typeof( window.innerWidth ) == 'number' )
	{
		//Non-IE
		myWidth = window.innerWidth;
	}
	else if( document.documentElement && document.documentElement.clientWidth )
	{
		//IE 6+ in 'standards compliant mode'
		myWidth = document.documentElement.clientWidth;
	}
	else if( document.body && document.body.clientWidth )
	{
		//IE 4 compatible
		myWidth = document.body.clientWidth;
	}
	return myWidth;
}