// JavaScript Document
<!--

// You may use this script freely as long
    // as you credit me for it...
    var usermulcode=40
        // This is to validate the code. In this case
        // the code is 4521 so the mul = 4*5*2*1 = 40
        // Change this value for your own code
        // If your code is 2415 it will be
        // usermulcode = 40 (2*4*1*5)
    var code=0   // the entered code
    var mul=1    // the multiplied digits
    var digit=0  // number of digits entered so far
    var fails=0  // number of tries done
    function Enter_code(number)
    {     
      code=code*10+number         			// Add the digit to the code
      mul=mul*number              			// Update mul-value
      document.codepad.thecode.value=code  	// Show code
      digit++                     			// Increase digit
      
      if (digit==4)               			// Four digits entered
      {
	  	if (code==5421) 
		  			{location=code+".asp"}
		else if (code==4521)
		  			{location=code+".asp"}
        else
        {
          fails++                 			// Increase fails
          code=0                  			// Reset values
          mul=1
          digit=0
          if (fails<3)            
          {
            if (fails==1)
            {document.codepad.thecode.value="riprova"}
            if (fails==2)
            {document.codepad.thecode.value="riprova l'ultima volta"}
          }
          else                    			// To many tries = worp back 
          {
            location="index.asp"
            document.codepad.thecode.value="A presto!"
          } 
        }
      }
    }

    function keycodepad(mulcode)
    {
      usermulcode=mulcode
      document.write("<form name=\"codepad\">");
      document.write("<input type=\"button\" value=\" 1 \" onClick=\"Enter_code(1)\">");
      document.write("<input type=\"button\" value=\" 2 \" onClick=\"Enter_code(2)\">");
      document.write("<input type=\"button\" value=\" 3 \" onClick=\"Enter_code(3)\"><br>");
      document.write("<input type=\"button\" value=\" 4 \" onClick=\"Enter_code(4)\">");
      document.write("<input type=\"button\" value=\" 5 \" onClick=\"Enter_code(5)\">");
      document.write("<input type=\"button\" value=\" 6 \" onClick=\"Enter_code(6)\"><br>");
      document.write("<input type=\"button\" value=\" 7 \" onClick=\"Enter_code(7)\">");
      document.write("<input type=\"button\" value=\" 8 \" onClick=\"Enter_code(8)\">");
      document.write("<input type=\"button\" value=\" 9 \" onClick=\"Enter_code(9)\"><br>");
      document.write("<input type=\"text\" name=\"thecode\" size=10 value=\"\"><br>");
      document.write("</form>");
    }
  // Key-code
//-->