var isIE = (navigator.appName == "Microsoft Internet Explorer") ? true : false;
function setTopMargin(){	
	var tempId = document.getElementById('subScroll');
	var tempPage = document.getElementById('page').clientHeight;
	var tempScreen = (window.innerHeight) ? window.innerHeight : document.body.clientHeight;
	var tempHeight = (tempScreen > 1024) ? 385 : (tempScreen - 250);
	tempHeight = (tempHeight < 250) ? "250px" : ((tempHeight > 375) ? "375px" : tempHeight+"px"); 
	tempId.style.height = tempHeight;
}

window.onresize = setTopMargin;