//681
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 setHeight(){

	var fold = getWindowHeight();
	var elem = document.getElementById('wrapper');
	var height = elem.offsetHeight;
	//alert(height);
	if(height < 681){
		elem.style.height = 681 +'px';
		//document.getElementById('footer').innerHTML = 'the page div had been resized';
	}
}

window.onload = function(){
	setHeight();
}