function getObj(name, wopener) {
  if (document.getElementById) {
  	if (!wopener) {
		return document.getElementById(name);
	} else {
		return window.opener.document.getElementById(name);
	}
  } else if (document.all) {
  	if (!wopener) {
		return document.all[name];
	} else {
		return window.opener.document.all[name];
	}
  } else if (document.layers) {
  	if (!wopener) {
		return document.layers[name];
	} else {
		return window.opener.document.layers[name];
	}
  }
}
function isInteger (s) {   
	var reInteger = /^\d+$/;
    return reInteger.test(s)
}
function Round(s) {
	return Math.round(s*100)/100;
}
function isEmail(emailstr)
{ 
  return(/^[\w~][\w\.\-~]*[\w~]@[\w~][\w\-~]*[\.][\w~][\w\.\-~]*[\w]$|^$/.test(emailstr) && !/[\.]{2}/.test(emailstr)); 
}