function isEmail(object, params)
{
	var inputstr = object.value;
	
	if(inputstr.length == 0)
	{
        if(params['allow_empty'] == "true")
            return true;
        
		return false;
	}
	
	var regex_1 = /@.*@|\.\.|\,/;
						
	var regex_2 = /^.+\@(\[?)[a-zA-Z0-9_\-\.]+\.([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$/;

	if(regex_1.test(inputstr) || !regex_2.test(inputstr))
	{
		return false;		
	}
	
	return true;
}