function getWindowHeight() {
	var windowHeight = 0;
	if (typeof(window.innerHeight) == 'number') {
		windowHeight = window.innerHeight;
	}
	else {
		if (document.documentElement && document.documentElement.clientHeight) {
			windowHeight = document.documentElement.clientHeight;
		}
		else {
			if (document.body && document.body.clientHeight) {
				windowHeight = document.body.clientHeight;
			}
		}
	}
	return windowHeight;
}
function getWindowWidth() {
	var windowWidth = 0;
	if (typeof(window.innerWidth) == 'number') {
		windowWidth = window.innerWidth;
	}
	else {
		if (document.documentElement && document.documentElement.clientHeight) {
			windowWidth = document.documentElement.clientWidth;
		}
		else {
			if (document.body && document.body.clientHeight) {
				windowWidth = document.body.clientWidth;
			}
		}
	}
	return windowWidth;
}

function setContentHeight() {
	windowH = getWindowHeight();

// footer 58px, header 225px, padding-bottom 10px, 10px = 293px

	newH = windowH-308;
	
	// set
	var bgObj = document.getElementById('content');
	bgObj.style.minHeight = newH+'px';
}
window.onresize = function() {
	setContentHeight();
}
window.onload = function() {
	setContentHeight();
}