function news_form()

{

  var ff = document.news; 
  				
		if((ff.nemail.value == "") || (ff.nemail.value == "Email"))
	{
		alert("Please enter your email address.");
		ff.nemail.focus();
		return false;
	}
	else if (ff.nemail.value.match(/^([\w\-]+\.?)+\@([\w\-]+\.{1})+(com|net|org|edu|int|mil|gov|biz|info|aero|museum|name|coop|\w{2})$/) == null) 
	{
		alert("Please enter a valid email id.");
		ff.nemail.focus(); 
		return false; 
	}
	
  			else
		//document.book.action = "book-mail.php";

return true;		
				
}

function isNumberKey(evt)
{
  var charCode = (evt.which) ? evt.which : event.keyCode
   if (charCode == 46)
  	return charCode;
  if (((charCode >= 33) && (charCode <= 47)) || ((charCode >= 58) && (charCode<=255)))
  {
  		if(evt.which)
		{
			evt.preventDefault();
		}
		else
		{
			evt.returnValue=false;
		}
  }else
  {
		
		return charCode;
  }
  
}

function isNumber(v)
   {
       var i;
       if(v.length==0)
               return false;
       for(i=0;i<v.length;i++)
               if( !(v.charAt(i)>="0" && v.charAt(i)<="9"))
                       return false;
       return true;
   }