function sendMessage() {
	disableBg();
}

function hideMessageBox() {
	enableBg();
}

function disableBg() {
	var H = 0;
	var WH = getWindowHeight();
	var GH = document.getElementById('global').offsetHeight;
	
	if(WH > GH) H = WH; else H = GH;
	
	document.getElementById('screenHideBlack').style.height = H+'px';
	document.getElementById('screenHideBlack').style.display = 'block';
	
	document.getElementById('fullscreenBg').style.display = 'block';
}

function enableBg() { 
	document.getElementById('screenHideBlack').style.display = 'none'; 
	document.getElementById('fullscreenBg').style.display = 'none'; 
	
	document.getElementById('send_name').value = '';
	document.getElementById('send_email').value = '';
	document.getElementById('send_msg').innerHTML = '';
}