function resizeHeight() {
	
	var footer = document.getElementById('footer');
	var content = document.getElementById('content');

	var myHeight = 0;
	if( typeof( window.innerWidth ) == 'number' ) {
		//Non-IE
		myHeight = window.innerHeight;
	} else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
		//IE 6+ in 'standards compliant mode'
		myHeight = document.documentElement.clientHeight;
	} else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
		//IE 4 compatible
		myHeight = document.body.clientHeight;
	}
	
	if ( document.getElementById('data').offsetHeight < 250) {
		footer.style.height = myHeight-520-content.offsetHeight+'px';
	}
}

resizeHeight();
window.onresize = resizeHeight;