function toggle(div_id, show) {
	
	var el = document.getElementById(div_id);
	//if(el.style.display == 'none') {	
	if(show) {
		el.style.display = 'block';
		document.getElementById('videoPlayer').style.visibility = 'hidden';
	}
	
	else {
		el.style.display = 'none';
		document.getElementById('videoPlayer').style.visibility = 'visible';
	}
}
function blanket_size(popUpDivVar) {
	if (typeof window.innerWidth != 'undefined') {
		viewportheight = window.innerHeight;
	} else {
		viewportheight = document.documentElement.clientHeight;
	}
	if ((viewportheight > document.body.parentNode.scrollHeight) && (viewportheight > document.body.parentNode.clientHeight)) {
		blanket_height = viewportheight;
	} else {
		if (document.body.parentNode.clientHeight > document.body.parentNode.scrollHeight) {
			blanket_height = document.body.parentNode.clientHeight;
		} else {
			blanket_height = document.body.parentNode.scrollHeight;
		}
	}
	var blanket = document.getElementById('blanket');
	blanket.style.height = blanket_height + 'px';
	var popUpDiv = document.getElementById(popUpDivVar);
	if(popUpDivVar == 'myspacePopup') {
		popUpDiv_height = (blanket_height / 2) - (250 / 2);
	}
	else if(popUpDivVar == 'emailPopup') {
		popUpDiv_height = (blanket_height / 2) - (120 / 2);
	}
	else if(popUpDivVar == 'embedCodePopup') {
		popUpDiv_height = (blanket_height / 2) - (150 / 2);
	}
	popUpDiv.style.top = popUpDiv_height + 'px';
}
function window_pos(popUpDivVar) {
	if (typeof window.innerWidth != 'undefined') {
		viewportwidth = window.innerWidth;
	} else {
		viewportwidth = document.documentElement.clientWidth;
	}
	if ((viewportwidth > document.body.parentNode.scrollWidth) && (viewportwidth > document.body.parentNode.clientWidth)) {
		window_width = viewportwidth;
	} else {
		if (document.body.parentNode.clientWidth > document.body.parentNode.scrollWidth) {
			window_width = document.body.parentNode.clientWidth;
		} else {
			window_width = document.body.parentNode.scrollWidth;
		}
	}
	if(popUpDivVar == 'myspacePopup') {
		var popupWidth=500; // needs to match CSS width
	}
	else if(popUpDivVar == 'emailPopup') {
		var popupWidth=400; // needs to match CSS width
	}
	else if(popUpDivVar == 'embedCodePopup') {
		var popupWidth=500; // needs to match CSS width
	}

	var popUpDiv = document.getElementById(popUpDivVar);
	window_width = (window_width / 2) - (popupWidth / 2);
	popUpDiv.style.left = window_width + 'px';
	
}
function popup(windowname,show) {
	blanket_size(windowname);
	window_pos(windowname);
	toggle('blanket',show);
	toggle(windowname,show);		
}