function blendin(element){
	if(document.getElementById(element).style.display = 'none'){
		document.getElementById(element).style.display = 'block';
	}
	else {
		document.getElementById(element).style.display = 'none';
	}
}
function blendout(element){
	if(document.getElementById(element).style.display = 'block'){
		document.getElementById(element).style.display = 'none';
	}
}