function manage_alert_box(){
	
	body_height=document.getElementById('wrapper').offsetHeight;
	document.getElementById('alertcover').style.display = 'block';
	if(body_height<768){
		document.getElementById('alertcover').style.height = 1024+'px';
	} else {
		document.getElementById('alertcover').style.height = eval(body_height + 28)+'px';
	}
	document.getElementById('alertcover').style.display = "block";
	document.getElementById('alertBoxBlock').style.display = "block";
}

if (window.attachEvent) {
	window.attachEvent('onload',manage_alert_box);
}else{
	window.onload = manage_alert_box;
}
function manage_alert_box_hide(){
	document.getElementById('alertcover').style.display = "none";
	document.getElementById('alertBoxBlock').style.display = "none";
}