function initMinHeight(){
	var _contentHolder = document.getElementById('page');
	if (_contentHolder) var _contentHolderH = _contentHolder.offsetHeight
	var _windowHeight = document.body.clientHeight;
	if (_windowHeight && _contentHolderH) {
		var _h = _windowHeight - _contentHolderH;
		if (_h > 0) {
			_contentHolder.style.height = _windowHeight + 'px';
		}
	}
}
if (window.addEventListener){
	window.addEventListener("resize",initMinHeight, false);
	window.addEventListener("load", initMinHeight, false);
}
else if (window.attachEvent){
	window.attachEvent("onresize", initMinHeight);
	window.attachEvent("onload", initMinHeight);
}