// JavaScript Document
function adjustLayer( whichLayer, changeIt )
  {
   var elem, vis;
   if( document.getElementById ) // this is the way the standards work
     elem = document.getElementById( whichLayer );
   else if( document.all ) // this is the way old msie versions work
      elem = document.all[whichLayer];
   else if( document.layers ) // this is the way nn4 works
     elem = document.layers[whichLayer];
   vis = elem.style;
   vis.display = changeIt;
  }

function testJava()
  {
    adjustLayer( "javabox",'none' );
    adjustLayer( "formbox",'block' );
  }  

function formRefresh()
   {
   //alert("infromRefres");
   confirm("Do you really want to reset the form?"); 
   adjustLayer( "nameError1",'none' );
   //adjustLayer( "nameError2",'none' );
   //adjustLayer( "companyError",'none' );
   adjustLayer( "emailError1",'none' );
   adjustLayer( "emailError2",'none' );
   //adjustLayer( "phoneError1",'none' );
   adjustLayer( "phoneError2",'none' );
   adjustLayer( "phoneError3",'none' );
   adjustLayer( "commentError",'none' );
   adjustLayer( "submitError",'none' );
   }
  
function validateFormOnSubmit(theForm) {
  var reason = "";
  //alert("in validateonsubmit");
  reason += validateName(theForm.name);
  //reason += validateCompany(theForm.company);
  reason += validateEmail(theForm.email);
  //alert("after email valid");
  reason += validatePhone(theForm.phone);
  //alert("after phone valid");
  reason += validateComments(theForm.comments);  
    if (reason != "") {
    //alert("Some fields need correction:\n" + reason);
    adjustLayer( "submitError" ,'block' );
    return false;
  }
  
  return true;
  }
  
function validateName(fld) {
    var error = "";
 
    if (fld.value.length == 0) {
        adjustLayer( "nameError1",'block' );
        error = "reqired field empty\n";
        //alert(error);
    } else {
        adjustLayer( "nameError1",'none' );
    }
    return error;  
  }

function validateComments(fld) {
    var error = "";
    //alert("in validate comments");
    if (fld.value.length == 0) {
        adjustLayer( "commentError",'block' );
        error = "reqired field empty\n";
        //alert(error);
    } else {
        adjustLayer( "commentError",'none' );
    }
    return error;  
}

function validateCompany(fld) {
    var error = "";
 
    if (fld.value.length == 0) {
        adjustLayer( "companyError",'block' );
        error = "reqired field empty\n";
    } else {
        adjustLayer( "companyError",'none' );
    }
    return error;  
  }
  
function trim(s)
  {
  return s.replace(/^\s+|\s+$/, '');
  }

function validateEmail(fld) {
    var error="";
    var tfld = trim(fld.value);                        // value of field with whitespace trimmed off
    var emailFilter = /^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i ;
    //alert("in validate email");   
    if (fld.value == "") {
        adjustLayer( "emailError1" ,'block' );
        error = "reqired field empty\n";
    } else if (!emailFilter.test(tfld)) {              //test email for illegal characters
        adjustLayer( "emailError2" ,'block' );
        error = "invalid email\n";
    } else {
        adjustLayer( "emailError1",'none' );
        adjustLayer( "emailError2",'none' );
    }
    //alert(error);
    return error;
}
  
function validatePhone(fld) {
    var error = "";
    var stripped = fld.value.replace(/[\(\)\.\-\ ]/g, '');    

   if (fld.value != "" && !isNaN(parseInt(stripped))){
        adjustLayer( "phoneError2",'none' );
   }
   
   if (fld.value == "") {
        adjustLayer( "phoneError2",'none' );
        adjustLayer( "phoneError3",'none' );
        //error = "You didn't enter a phone number.\n";
        //adjustLayer( "phoneError1" ,'block' );
    } else if (isNaN(parseInt(stripped))) {
        error = "The phone number contains illegal characters.\n";
        adjustLayer( "phoneError2" ,'block' );
    } else if ((stripped.length < 10)) {
        error = "The phone number is the wrong length. Make sure you included an area code.\n";
        adjustLayer( "phoneError3" ,'block' );
    }
    else{
    //adjustLayer( "phoneError1",'none' );
    adjustLayer( "phoneError2",'none' );
    adjustLayer( "phoneError3",'none' );
    }
    //alert("in phone error");
    return error;
}

function showAddress()
  {
    adjustLayer( "showaddress", 'none');
    adjustLayer( "address", 'block');
  }
  
function hideAddress()
  {
    adjustLayer( "showaddress", 'block');
    adjustLayer( "address", 'none');
  }