function isStrongPassword() 
{

   var control = document.form1.pw1;
   var myString= control.value; 


   var Stringlen = myString.length;
   var ValidateDigits = /[^0-9]/g;
   var ValidateSpChar = /[a-zA-Z0-9]/g;
   var ValidateChar = /[^a-zA-Z]/g;

   var digitString = myString.replace(ValidateDigits , "");
   var specialString = myString.replace(ValidateSpChar, "");
   var charString = myString.replace(ValidateChar, "");

   if(Stringlen < 3)
   {
   alert("Passwords must be at least 3 characters");
   control.value="";
   control.focus();
   return false;
   }
   
   if(digitString < 1)
   {
   alert("Passwords must include at least 1 numeric characters");
   control.value="";
   control.focus();
   return false;
   }
	
	if (document.form1.pw1.value !=
	document.form1.pw2.value) {
	alert("Passwords don't match, try again");
	document.form1.pw1.focus();
	document.form1.pw1.select();
	return false;
	}
	 
	
   
   return;
}