function toggleDiv(divid){
	var div = document.getElementById(divid);
	if (div.style.display == "none")
		div.style.display = "block";
	else div.style.display = "none";
	return;
}

function AllowTabCharacter(event, obj) {
    if (event.which) // mozilla
        var keycode = event.which;
    else // ie
        var keycode = event.keyCode;
    if (keycode == 9) {
        if (event.type == "keydown") {
            if (obj.setSelectionRange) {
                // mozilla
                var s = obj.selectionStart;
                var e = obj.selectionEnd;
                obj.value = obj.value.substring(0, s) + 
                    "\t" + obj.value.substr(e);
                obj.setSelectionRange(s + 1, s + 1);
                obj.focus();
            } else if (obj.createTextRange) {
                // ie
                document.selection.createRange().text="\t"
                obj.onblur = function() { this.focus(); this.onblur = null; };
            } else {
                // unsupported browsers
            }
        }
        if (event.returnValue) // ie ?
            event.returnValue = false;
        if (event.preventDefault) // dom
            event.preventDefault();
        return false; // should work in all browsers
    }
    return true;
}