window.onload = function() {
  contentHeight();
}
window.onresize = function() {
  contentHeight();
}

function contentHeight() {
	if (document.getElementById) {
		var windowHeight = getWindowHeight();
		var containerHeight = document.getElementById('ttc-main-container').offsetHeight;
		var contentextraHeight = 0;
		if (document.getElementById('ttc-homepage-secondary-content')) {
		   contentextraHeight = document.getElementById('ttc-homepage-secondary-content').offsetHeight;
		}
		var footercontentHeight = document.getElementById('ttc-footer').offsetHeight;
		var footerElement = document.getElementById('ttc-footer-stretch');
		var footerHeightStretch = (windowHeight - (containerHeight + contentextraHeight + footercontentHeight));
		if (footerHeightStretch >0) {
			footerElement.style.height = footerHeightStretch + 'px';
		}
	}
}

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;
}