function changeView(section) {
	if (document.getElementById(section).style.display == "block") {
		document.getElementById(section).style.display = "none";
	}
	else {
		document.getElementById(section).style.display = "block";
	}
	document.getElementById("info").style.display = "none";
	return;
}



function changeText(section, content) {
	document.getElementById("info").innerHTML = content;
}


function IsNumeric(sText) {
	var ValidChars = "0123456789.";
	var IsNumber=true;
	var Char;

	for (i = 0; i < sText.length && IsNumber == true; i++) { 
		Char = sText.charAt(i); 
		
		if (ValidChars.indexOf(Char) == -1) {
			IsNumber = false;
		}
	}
	return IsNumber;

}