function openClose(x) {
	for (var i = 0; i < arguments.length; i++) {
		var elem = document.getElementById(arguments[i]);
		if (elem.style.display == "none")
			elem.style.display = "block";
		else elem.style.display = "none";
	}
}
function togglediv (var1) {
	if (document.getElementById(var1).style.display == 'none') {
		document.getElementById(var1).style.display = 'block';
	} 
	else {
		document.getElementById(var1).style.display = 'none';
	}
}
function opendiv(x) {
	for (var i = 0; i < arguments.length; i++) {
		var elem = document.getElementById(arguments[i]);
		elem.style.display = "block";
	}
}
function closediv(var1) {
	document.getElementById(var1).style.display = 'none';
}
function closenote(var1) {
	document.getElementById("note" + var1).style.display = 'none';
}	
function surroundText(text1, text2, textarea) {
	if (typeof(textarea.caretPos) != "undefined" && textarea.createTextRange) {
		var caretPos = textarea.caretPos, temp_length = caretPos.text.length;
		caretPos.text = caretPos.text.charAt(caretPos.text.length - 1) == ' ' ? text1 + caretPos.text + text2 + ' ' : text1 + caretPos.text + text2;
		if (temp_length == 0)
		{
			caretPos.moveStart("character", -text2.length);
			caretPos.moveEnd("character", -text2.length);
			caretPos.select();
		}
		else
			textarea.focus(caretPos);
	}
	else if (typeof(textarea.selectionStart) != "undefined") {
		var begin = textarea.value.substr(0, textarea.selectionStart);
		var selection = textarea.value.substr(textarea.selectionStart, textarea.selectionEnd - textarea.selectionStart);
		var end = textarea.value.substr(textarea.selectionEnd);
		var newCursorPos = textarea.selectionStart;
		var scrollPos = textarea.scrollTop;
		textarea.value = begin + text1 + selection + text2 + end;            
		if (textarea.setSelectionRange) {
			if (selection.length == 0)
				textarea.setSelectionRange(newCursorPos + text1.length, newCursorPos + text1.length);
			else
				textarea.setSelectionRange(newCursorPos, newCursorPos + text1.length + selection.length + text2.length);
				textarea.focus();
		}
		textarea.scrollTop = scrollPos;
	}
	else {
		textarea.value += text1 + text2;
		textarea.focus(textarea.value.length - 1);
	}
}