var oxo = {
	getWindowHeight : function() {
		var windowHeight=0;
		if (typeof(window.innerHeight)=='number') {windowHeight=window.innerHeight;}
		else if (document.documentElement && document.documentElement.clientHeight) {windowHeight=document.documentElement.clientHeight;}
		else windowHeight=document.body.clientHeight;
		
		return windowHeight;
	},
	_load : function(){
		var winHeight = this.getWindowHeight();
		if($('content').offsetHeight < (winHeight - $('header').offsetHeight))
			$('content').style.height = (winHeight - $('header').offsetHeight) + 'px';
	}
}

//window.onload = function() {oxo._load();}