I found a contact form online with a little bit of JavaScript that is the form validator. There is an error in the code according to when the page is loaded. It says it’s on line 117. Here is the code starting with line 117.
<script language="JavaScript" type="text/javascript">
// Code for validating the form
// Visit http://www.javascript-coder.com/html-form/javascript-form-validation.phtml
// for details
var frmvalidator = new Validator("contactform");
frmvalidator.addValidation("name","req","Please provide your name");
frmvalidator.addValidation("email","req","Please provide your email");
frmvalidator.addValidation("email","email","Please enter a valid email address");
</script>
It says the validator is undefined. The page is also linked to a JavaScript page. The code for that page is below.
/*
-------------------------------------------------------------------------
JavaScript Form Validator (gen_validatorv31.js)
Version 3.1.2
Copyright (C) 2003-2008 JavaScript-Coder.com. All rights reserved.
You can freely use this script in your Web pages.
You may adapt this script for your own needs, provided these opening credit
lines are kept intact.
The Form validation script is distributed free from JavaScript-Coder.com
For updates, please visit:
http://www.javascript-coder.com/html-form/javascript-form-validation.phtml
Questions & comments please send to form.val at javascript-coder.com
-------------------------------------------------------------------------
*/
function Validator(frmname)
{
this.formobj=document.forms[frmname];
if(!this.formobj)
{
alert("Error: couldnot get Form object "+frmname);
return;
}
if(this.formobj.onsubmit)
{
this.formobj.old_onsubmit = this.formobj.onsubmit;
this.formobj.onsubmit=null;
}
else
{
this.formobj.old_onsubmit = null;
}
this.formobj._sfm_form_name=frmname;
this.formobj.onsubmit=form_submit_handler;
this.addValidation = add_validation;
this.setAddnlValidationFunction=set_addnl_vfunction;
this.clearAllValidations = clear_all_validations;
this.disable_validations = false;//new
document.error_disp_handler = new sfm_ErrorDisplayHandler();
this.EnableOnPageErrorDisplay=validator_enable_OPED;
this.EnableOnPageErrorDisplaySingleBox=validator_enable_OPED_SB;
this.show_errors_together=true;
this.EnableMsgsTogether=sfm_enable_show_msgs_together;
document.set_focus_onerror=true;
this.EnableFocusOnError=sfm_validator_enable_focus;
}
function sfm_validator_enable_focus(enable)
{
document.set_focus_onerror = enable;
}
function set_addnl_vfunction(functionname)
{
this.formobj.addnlvalidation = functionname;
}
function sfm_set_focus(objInput)
{
if(document.set_focus_onerror)
{
objInput.focus();
}
}
function sfm_enable_show_msgs_together()
{
this.show_errors_together=true;
this.formobj.show_errors_together=true;
}
function clear_all_validations()
{
for(var itr=0;itr < this.formobj.elements.length;itr++)
{
this.formobj.elements[itr].validationset = null;
}
}
function form_submit_handler()
{
var bRet = true;
document.error_disp_handler.clear_msgs();
for(var itr=0;itr < this.elements.length;itr++)
{
if(this.elements[itr].validationset &&
!this.elements[itr].validationset.validate())
{
bRet = false;
}
if(!bRet && !this.show_errors_together)
{
break;
}
}
if(this.addnlvalidation)
{
str =" var ret = "+this.addnlvalidation+"()";
eval(str);
if(!ret)
{
bRet=false;
}
}
if(!bRet)
{
document.error_disp_handler.FinalShowMsg();
return false;
}
return true;
}
function add_validation(itemname,descriptor,errstr)
{
var condition = null;
if(arguments.length > 3)
{
condition = arguments[3];
}
if(!this.formobj)
{
alert("Error: The form object is not set properly");
return;
}//if
var itemobj = this.formobj[itemname];
if(itemobj.length && isNaN(itemobj.selectedIndex) )
//for radio button; don't do for 'select' item
{
itemobj = itemobj[0];
}
if(!itemobj)
{
alert("Error: Couldnot get the input object named: "+itemname);
return;
}
if(!itemobj.validationset)
{
itemobj.validationset = new ValidationSet(itemobj,this.show_errors_together);
}
itemobj.validationset.add(descriptor,errstr,condition);
itemobj.validatorobj=this;
}
function validator_enable_OPED()
{
document.error_disp_handler.EnableOnPageDisplay(false);
}
function validator_enable_OPED_SB()
{
document.error_disp_handler.EnableOnPageDisplay(true);
}
function sfm_ErrorDisplayHandler()
{
this.msgdisplay = new AlertMsgDisplayer();
this.EnableOnPageDisplay= edh_EnableOnPageDisplay;
this.ShowMsg=edh_ShowMsg;
this.FinalShowMsg=edh_FinalShowMsg;
this.all_msgs=new Array();
this.clear_msgs=edh_clear_msgs;
}
function edh_clear_msgs()
{
this.msgdisplay.clearmsg(this.all_msgs);
this.all_msgs = new Array();
}
function edh_FinalShowMsg()
{
this.msgdisplay.showmsg(this.all_msgs);
}
function edh_EnableOnPageDisplay(single_box)
{
if(true == single_box)
{
this.msgdisplay = new SingleBoxErrorDisplay();
}
else
{
this.msgdisplay = new DivMsgDisplayer();
}
}
function edh_ShowMsg(msg,input_element)
{
var objmsg = new Array();
objmsg["input_element"] = input_element;
objmsg["msg"] = msg;
this.all_msgs.push(objmsg);
}
function AlertMsgDisplayer()
{
this.showmsg = alert_showmsg;
this.clearmsg=alert_clearmsg;
}
function alert_clearmsg(msgs)
{
}
function alert_showmsg(msgs)
{
var whole_msg="";
var first_elmnt=null;
for(var m=0;m < msgs.length;m++)
{
if(null == first_elmnt)
{
first_elmnt = msgs[m]["input_element"];
}
whole_msg += msgs[m]["msg"] + "\
";
}
alert(whole_msg);
if(null != first_elmnt)
{
sfm_set_focus(first_elmnt);
}
}
function sfm_show_error_msg(msg,input_elmt)
{
document.error_disp_handler.ShowMsg(msg,input_elmt);
}
function SingleBoxErrorDisplay()
{
this.showmsg=sb_div_showmsg;
this.clearmsg=sb_div_clearmsg;
}
function sb_div_clearmsg(msgs)
{
var divname = form_error_div_name(msgs);
show_div_msg(divname,"");
}
function sb_div_showmsg(msgs)
{
var whole_msg="<ul>\
";
for(var m=0;m < msgs.length;m++)
{
whole_msg += "<li>" + msgs[m]["msg"] + "</li>\
";
}
whole_msg += "</ul>";
var divname = form_error_div_name(msgs);
show_div_msg(divname,whole_msg);
}
function form_error_div_name(msgs)
{
var input_element= null;
for(var m in msgs)
{
input_element = msgs[m]["input_element"];
if(input_element){break;}
}
var divname ="";
if(input_element)
{
divname = input_element.form._sfm_form_name + "_errorloc";
}
return divname;
}
function DivMsgDisplayer()
{
this.showmsg=div_showmsg;
this.clearmsg=div_clearmsg;
}
function div_clearmsg(msgs)
{
for(var m in msgs)
{
var divname = element_div_name(msgs[m]["input_element"]);
show_div_msg(divname,"");
}
}
function element_div_name(input_element)
{
var divname = input_element.form._sfm_form_name + "_" +
input_element.name + "_errorloc";
divname = divname.replace(/[\\[\\]]/gi,"");
return divname;
}
function div_showmsg(msgs)
{
var whole_msg;
var first_elmnt=null;
for(var m in msgs)
{
if(null == first_elmnt)
{
first_elmnt = msgs[m]["input_element"];
}
var divname = element_div_name(msgs[m]["input_element"]);
show_div_msg(divname,msgs[m]["msg"]);
}
if(null != first_elmnt)
{
sfm_set_focus(first_elmnt);
}
}
function show_div_msg(divname,msgstring)
{
if(divname.length<=0) return false;
if(document.layers)
{
divlayer = document.layers[divname];
if(!divlayer){return;}
divlayer.document.open();
divlayer.document.write(msgstring);
divlayer.document.close();
}
else
if(document.all)
{
divlayer = document.all[divname];
if(!divlayer){return;}
divlayer.innerHTML=msgstring;
}
else
if(document.getElementById)
{
divlayer = document.getElementById(divname);
if(!divlayer){return;}
divlayer.innerHTML =msgstring;
}
divlayer.style.visibility="visible";
}
function ValidationDesc(inputitem,desc,error,condition)
{
this.desc=desc;
this.error=error;
this.itemobj = inputitem;
this.condition = condition;
this.validate=vdesc_validate;
}
function vdesc_validate()
{
if(this.condition != null )
{
if(!eval(this.condition))
{
return true;
}
}
if(!validateInput(this.desc,this.itemobj,this.error))
{
this.itemobj.validatorobj.disable_validations=true;
sfm_set_focus(this.itemobj);
return false;
}
return true;
}
function ValidationSet(inputitem,msgs_together)
{
this.vSet=new Array();
this.add= add_validationdesc;
this.validate= vset_validate;
this.itemobj = inputitem;
this.msgs_together = msgs_together;
}
function add_validationdesc(desc,error,condition)
{
this.vSet[this.vSet.length]=
new ValidationDesc(this.itemobj,desc,error,condition);
}
function vset_validate()
{
var bRet = true;
for(var itr=0;itr<this.vSet.length;itr++)
{
bRet = bRet && this.vSet[itr].validate();
if(!bRet && !this.msgs_together)
{
break;
}
}
return bRet;
}
function validateEmail(email)
{
var splitted = email.match("^(.+)@(.+)$");
if(splitted == null) return false;
if(splitted[1] != null )
{
var regexp_user=/^\\"?[\\w-_\\.]*\\"?$/;
if(splitted[1].match(regexp_user) == null) return false;
}
if(splitted[2] != null)
{
var regexp_domain=/^[\\w-\\.]*\\.[A-Za-z]{2,4}$/;
if(splitted[2].match(regexp_domain) == null)
{
var regexp_ip =/^\\[\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\]$/;
if(splitted[2].match(regexp_ip) == null) return false;
}// if
return true;
}
return false;
}
function IsCheckSelected(objValue,chkValue)
{
var selected=false;
var objcheck = objValue.form.elements[objValue.name];
if(objcheck.length)
{
var idxchk=-1;
for(var c=0;c < objcheck.length;c++)
{
if(objcheck[c].value == chkValue)
{
idxchk=c;
break;
}//if
}//for
if(idxchk>= 0)
{
if(objcheck[idxchk].checked=="1")
{
selected=true;
}
}//if
}
else
{
if(objValue.checked == "1")
{
selected=true;
}//if
}//else
return selected;
}
function TestDontSelectChk(objValue,chkValue,strError)
{
var pass = true;
pass = IsCheckSelected(objValue,chkValue)?false:true;
if(pass==false)
{
if(!strError || strError.length ==0)
{
strError = "Can't Proceed as you selected "+objValue.name;
}//if
sfm_show_error_msg(strError,objValue);
}
return pass;
}
function TestShouldSelectChk(objValue,chkValue,strError)
{
var pass = true;
pass = IsCheckSelected(objValue,chkValue)?true:false;
if(pass==false)
{
if(!strError || strError.length ==0)
{
strError = "You should select "+objValue.name;
}//if
sfm_show_error_msg(strError,objValue);
}
return pass;
}
function TestRequiredInput(objValue,strError)
{
var ret = true;
var val = objValue.value;
val = val.replace(/^\\s+|\\s+$/g,"");//trim
if(eval(val.length) == 0)
{
if(!strError || strError.length ==0)
{
strError = objValue.name + " : Required Field";
}//if
sfm_show_error_msg(strError,objValue);
ret=false;
}//if
return ret;
}
function TestMaxLen(objValue,strMaxLen,strError)
{
var ret = true;
if(eval(objValue.value.length) > eval(strMaxLen))
{
if(!strError || strError.length ==0)
{
strError = objValue.name + " : "+ strMaxLen +" characters maximum ";
}//if
sfm_show_error_msg(strError,objValue);
ret = false;
}//if
return ret;
}
function TestMinLen(objValue,strMinLen,strError)
{
var ret = true;
if(eval(objValue.value.length) < eval(strMinLen))
{
if(!strError || strError.length ==0)
{
strError = objValue.name + " : " + strMinLen + " characters minimum ";
}//if
sfm_show_error_msg(strError,objValue);
ret = false;
}//if
return ret;
}
function TestInputType(objValue,strRegExp,strError,strDefaultError)
{
var ret = true;
var charpos = objValue.value.search(strRegExp);
if(objValue.value.length > 0 && charpos >= 0)
{
if(!strError || strError.length ==0)
{
strError = strDefaultError;
}//if
sfm_show_error_msg(strError,objValue);
ret = false;
}//if
return ret;
}
function TestEmail(objValue,strError)
{
var ret = true;
if(objValue.value.length > 0 && !validateEmail(objValue.value) )
{
if(!strError || strError.length ==0)
{
strError = objValue.name+": Enter a valid Email address ";
}//if
sfm_show_error_msg(strError,objValue);
ret = false;
}//if
return ret;
}
function TestLessThan(objValue,strLessThan,strError)
{
var ret = true;
if(isNaN(objValue.value))
{
sfm_show_error_msg(objValue.name +": Should be a number ",objValue);
ret = false;
}//if
else
if(eval(objValue.value) >= eval(strLessThan))
{
if(!strError || strError.length ==0)
{
strError = objValue.name + " : value should be less than "+ strLessThan;
}//if
sfm_show_error_msg(strError,objValue);
ret = false;
}//if
return ret;
}
function TestGreaterThan(objValue,strGreaterThan,strError)
{
var ret = true;
if(isNaN(objValue.value))
{
sfm_show_error_msg(objValue.name+": Should be a number ",objValue);
ret = false;
}//if
else
if(eval(objValue.value) <= eval(strGreaterThan))
{
if(!strError || strError.length ==0)
{
strError = objValue.name + " : value should be greater than "+ strGreaterThan;
}//if
sfm_show_error_msg(strError,objValue);
ret = false;
}//if
return ret;
}
function TestRegExp(objValue,strRegExp,strError)
{
var ret = true;
if( objValue.value.length > 0 &&
!objValue.value.match(strRegExp) )
{
if(!strError || strError.length ==0)
{
strError = objValue.name+": Invalid characters found ";
}//if
sfm_show_error_msg(strError,objValue);
ret = false;
}//if
return ret;
}
function TestDontSelect(objValue,dont_sel_index,strError)
{
var ret = true;
if(objValue.selectedIndex == null)
{
sfm_show_error_msg("ERROR: dontselect command for non-select Item");
ret = false;
}
if(objValue.selectedIndex == eval(dont_sel_index))
{
if(!strError || strError.length ==0)
{
strError = objValue.name+": Please Select one option ";
}//if
sfm_show_error_msg(strError,objValue);
ret = false;
}
return ret;
}
function TestSelectOneRadio(objValue,strError)
{
var objradio = objValue.form.elements[objValue.name];
var one_selected=false;
for(var r=0;r < objradio.length;r++)
{
if(objradio[r].checked)
{
one_selected=true;
break;
}
}
if(false == one_selected)
{
if(!strError || strError.length ==0)
{
strError = "Please select one option from "+objValue.name;
}
sfm_show_error_msg(strError,objValue);
}
return one_selected;
}
function validateInput(strValidateStr,objValue,strError)
{
var ret = true;
var epos = strValidateStr.search("=");
var command = "";
var cmdvalue = "";
if(epos >= 0)
{
command = strValidateStr.substring(0,epos);
cmdvalue = strValidateStr.substr(epos+1);
}
else
{
command = strValidateStr;
}
switch(command)
{
case "req":
case "required":
{
ret = TestRequiredInput(objValue,strError)
break;
}//case required
case "maxlength":
case "maxlen":
{
ret = TestMaxLen(objValue,cmdvalue,strError)
break;
}//case maxlen
case "minlength":
case "minlen":
{
ret = TestMinLen(objValue,cmdvalue,strError)
break;
}//case minlen
case "alnum":
case "alphanumeric":
{
ret = TestInputType(objValue,"[^A-Za-z0-9]",strError,
objValue.name+": Only alpha-numeric characters allowed ");
break;
}
case "alnum_s":
case "alphanumeric_space":
{
ret = TestInputType(objValue,"[^A-Za-z0-9\\\\s]",strError,
objValue.name+": Only alpha-numeric characters and space allowed ");
break;
}
case "num":
case "numeric":
{
ret = TestInputType(objValue,"[^0-9]",strError,
objValue.name+": Only digits allowed ");
break;
}
case "dec":
case "decimal":
{
ret = TestInputType(objValue,"[^0-9\\.]",strError,
objValue.name+": Only numbers allowed ");
break;
}
case "alphabetic":
case "alpha":
{
ret = TestInputType(objValue,"[^A-Za-z]",strError,
objValue.name+": Only alphabetic characters allowed ");
break;
}
case "alphabetic_space":
case "alpha_s":
{
ret = TestInputType(objValue,"[^A-Za-z\\\\s]",strError,
objValue.name+": Only alphabetic characters and space allowed ");
break;
}
case "email":
{
ret = TestEmail(objValue,strError);
break;
}
case "lt":
case "lessthan":
{
ret = TestLessThan(objValue,cmdvalue,strError);
break;
}
case "gt":
case "greaterthan":
{
ret = TestGreaterThan(objValue,cmdvalue,strError);
break;
}//case greaterthan
case "regexp":
{
ret = TestRegExp(objValue,cmdvalue,strError);
break;
}
case "dontselect":
{
ret = TestDontSelect(objValue,cmdvalue,strError)
break;
}
case "dontselectchk":
{
ret = TestDontSelectChk(objValue,cmdvalue,strError)
break;
}
case "shouldselchk":
{
ret = TestShouldSelectChk(objValue,cmdvalue,strError)
break;
}
case "selone_radio":
{
ret = TestSelectOneRadio(objValue,strError);
break;
}
}//switch
return ret;
}
function VWZ_IsListItemSelected(listname,value)
{
for(var i=0;i < listname.options.length;i++)
{
if(listname.options[i].selected == true &&
listname.options[i].value == value)
{
return true;
}
}
return false;
}
function VWZ_IsChecked(objcheck,value)
{
if(objcheck.length)
{
for(var c=0;c < objcheck.length;c++)
{
if(objcheck[c].checked == "1" &&
objcheck[c].value == value)
{
return true;
}
}
}
else
{
if(objcheck.checked == "1" )
{
return true;
}
}
return false;
}
/*
Copyright (C) 2003-2009 JavaScript-Coder.com . All rights reserved.
*/
I do not know JavaScript so I am unsure how to correct this error. The first line of the form does have the “name” of the form as contactform. Any help would be appreciated as I am sure the client does not want an error on his page. The site is http://easyguitarbook.com/about.html.
