function checkContentHeight() {
	try {
		if(document.getElementById('contentBody') != null) {
			var cHeight = document.getElementById('contentBody').offsetHeight;
		}
		if(document.getElementById('frontBox') != null) {
			var fHeight = document.getElementById('frontBox').offsetHeight;
		}
		if(document.getElementById('menuBox') != null) {
			var mHeight = document.getElementById('menuBox').offsetHeight;
		}
		
		var maxHeight = 450;
		
		if( cHeight != null && cHeight > maxHeight ) { maxHeight = cHeight; }
		if( fHeight != null && fHeight > maxHeight ) { maxHeight = fHeight; }
		if( mHeight != null && mHeight > maxHeight ) { maxHeight = mHeight; }

		maxHeight += 50;

		document.getElementById('contentBox').style.height = (maxHeight+30) + 'px';
		document.getElementById('menuBox').style.height = maxHeight + 'px';
	} catch(e) { }	
}