/**
* Custom message showing box.
*/
function custom_alert(message)
{
        if(message)
        {
                window.alert(message);
        }
        else
        {
                // no message to show. Keep quite.
        }
        return(false);
}

function Validator(frmname)
{
  this.formobj=document.forms[frmname];
        if(!this.formobj)
        {
          custom_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)
        {
                custom_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)
        {
                custom_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"] + "\n";
    }
        
    custom_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>\n";
        for(var m=0;m < msgs.length;m++)
    {
        whole_msg += "<li>" + msgs[m]["msg"] + "</li>\n";
    }
        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;
                }

                // name of a personal
                case "name":
                {
                        ret = TestInputType(objValue,"[^A-Za-z\\s\.\(\)]",strError, // 0-9
                                        objValue.name+": Only alpha-numeric characters and space allowed ");
                        break;
                }
                // slc symbol number
                case "slc":
                {
                        var slc =/^[0-9]{5,}[A-Z]{1}$/i;
                        ret = slc.test(objValue.value);
                        if(!ret)
                        {
                                custom_alert(strError);
                        }
                        break;              
                }
                // date
                case "date":
                {
                        var date =/^[0-9]{4}\-[0-1][0-9]-[0-3][0-9]$/;
                        ret = date.test(objValue.value);
                        if(!ret)
                        {
                                custom_alert(strError);
                        }
                        break;              
                }
                // time
                case "time":
           {
                        var time =/^[0-2][0-9]\:[0-5][0-9]\:[0-5][0-9]$/;
                        ret = time.test(objValue.value);
                        if(!ret)
                        {
                                custom_alert(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;
}