function openWin(url)
{
var j=window.open(url,"jj","width=450,height=400,scrollbars=1")
}
var whitespace = " \t\n\r"
function isEmpty(s)
{
   return ((s == null) || (s.length == 0))
}
function isWhitespace (s)
{  var i;
	// Is s empty?
	if (isEmpty(s)) return true;

	 // Search through string's characters one by one
	 // until we find a non-whitespace character.
	 // When we do, return false; if we don't, return true.
	 for (i = 0; i < s.length; i++)
	 {   
		 // Check that current character isn't whitespace.
		 var c = s.charAt(i);
 
		 if (whitespace.indexOf(c) == -1) return false;
	 }
 
	 // All characters are whitespace.
	 return true;
}
function BuildStr(s, s1)
{
	  if (s.length> 0) s = s + "\n";
	  s = s + s1;
	  return s;
}

function isCharsInBag (s, bag)
{  
  var i;
  // Search through string's characters one by one.
  // If character is in bag, append to returnString.

  for (i = 0; i < s.length; i++)
  {   
	  // Check that current character isn't whitespace.
	  var c = s.charAt(i);
	  if (bag.indexOf(c) == -1) return false;
  }
  return true;
}


function echeck(str) 
	{
		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		   return true;
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
			return true;
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    return true;
   		}

		 if (str.indexOf(at,(lat+1))!=-1){
			return true;
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
			return true;
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
			return true;
		 }
		
		 if (str.indexOf(" ")!=-1){
			return true;
		 }

 		 return false;					
	}