// JavaScript Document
function selectedValue(selBox) {
  return selBox.options[selBox.selectedIndex].value;
}
function validateColor(color, name) {
	var isValid = true;
	if (color.length != 6)
		isValid = false;
	if (isValid) {
		for (var i = 0; i < 6; ++i) {
			if ('0123456789ABCDEFabcdef'.indexOf(color.charAt(i)) < 0) {
				isValid = false;
				break;
			}
		}
	}
	if (!isValid) {
		alert('please enter valid color for your ' + name + '.');
	}
	return isValid;
}
function validateEnglishAlphabets(message) {
	var allowed = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!$%&()-_;\'",./? ';
	var ret = '';
	var isValid = false;
	for (var i = 0; i < message.length; ++i) {
		if (allowed.indexOf(message.charAt(i)) >= 0) {
			ret += message.charAt(i);
		}
	}
	return ret;
}
function getQueryVariable(variable, query) {
  var vars = query.split("&");
  for (var i = 0; i < vars.length; i++) {
    var pair = vars[i].split("=");                  
    if (pair[0] == variable) {
      return unescape(pair[1]);
    }
  }
  return undefined;
}