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Dynamic control generation - Javascript code

The JS code for generating controls dynamically.
Copy and paste the code and save it as an HTML file,
take it on the browser to know the working of the script.

The add Ctrl function will duplicate the TR of the table.

On clicking the link "Add More Contact Persons" the new row
of control will be created.

On clicking the " Remove" link the corresponding row will be deleted.



////////////////////////////////////////

<script>
function addCtrl>(ctrl_StartID, CtrlArray,startDivId, ContainerId,ctrlLabel, DivHeight,fieldLength, enableValidator){
/*
if there are more text controlls in a single div you can seperate
that by "*=*"
for example when we call this function to print 3 text boxes in a div with height25px
you can call like this
onclick="addCtrl('txtName*=*txtCab*=*txtLoc','arr_Name*=*arr_Cab*=*arr_Loc','divSpecial','span1','SpecName*=*CabSeat*=*CabLoc','25px'.'150px','0*=*1*=*2')"
The value '0*=*1*=*2' corresponsd to param 'enableValidator' is for handling the numeric and phone format enabling
*/
if(document.getElementById(ContainerId)){
var obj=document.getElementById(ContainerId);
var arrDiv=document.getElementsByTagName("DIV");
var cnt=0;
for(i=0 ; i < arrDiv.length ;i++){
if(arrDiv[i].id.indexOf(startDivId)==0 )
cnt++;
}
newcnt=cnt;
var newdiv = document.createElement('DIV');

newdiv.id =startDivId+newcnt;
newdiv.style.height=DivHeight;
var arrctrl_StartID=ctrl_StartID.split("*=*");
var arrCtrlArray=CtrlArray.split("*=*");
var arrctrlLabel=ctrlLabel.split("*=*");
var arrEnableValidator=enableValidator.split("*=*");
var strValidator="";

var arrCnt=arrctrl_StartID.length;
var innerStr="";

for(i=0;i < arrCnt ; i++){

if(arrEnableValidator[i]==1)
strValidator=" onkeyUP=\" isNumber('"+arrctrl_StartID[i]+"_"+newcnt+"',1);\" ";
else if(arrEnableValidator[i]==2)
strValidator=" onfocus=\"toNonFormatedStyle('"+arrctrl_StartID[i]+"_"+newcnt+"')\" onkeyUP=\" isNumber('"+arrctrl_StartID[i]+"_"+newcnt+"',0);\" onblur=\"toPhoneFormat('"+arrctrl_StartID[i]+"_"+newcnt+"')\" ";
else
strValidator="";

innerStr=innerStr +"<label> "+arrctrlLabel[i]+"</label>  <input id='"+arrctrl_StartID[i]+"_"+newcnt+"' type='text' name='"+arrCtrlArray[i]+"[]' style='width:"+fieldLength+"' "+strValidator+" >  ";
if( i == parseInt(arrCnt)-1 )
innerStr=innerStr+"<a onclick=remCtrl('"+newdiv.id+"','"+ContainerId+"'); class=link >Remove</a>";
}
newdiv.innerHTML = innerStr;
obj.appendChild(newdiv);
}
if(document.getElementById(arrctrl_StartID[0]+"_"+newcnt)){
document.getElementById(arrctrl_StartID[0]+"_"+newcnt).focus();
}
}



////////////////////////////////////////




function remCtrl(divid,containerId){
if(document.getElementById(divid) && document.getElementById(containerId)){
document.getElementById(containerId).removeChild(document.getElementById(divid));
}
}


function showOtherDiv(id,ftVal,hgt,ctrlwidth){
var strInnerContent=""
var divObj=document.getElementById('divContainer_'+id);
var stat='none';
var strId='chk_FTOther_'+id;
if( document.getElementById( strId ) ){
var obj=document.getElementById(strId);
if(obj.checked){
divObj.style.display='block';
strInnerContent="\n<span id=\"spanOther_"+id+"\">\n<div id=\"divOther_"+id+"\" style=\"height:"+hgt+";\">\n <label>  Other "+ftVal+" details </label>  \n<input id=\"txtOther__"+id+"\" type=\"text\" name =\"txt_other_"+id+"[]\" style=\"width:"+ctrlwidth+";\" >\n </div> </span> \n<div id=\"remdiv_"+id+"\" ><a onclick=\"addCtrl('txtOther__"+id+"','txt_other_"+id+"','divOther_"+id+"','spanOther_"+id+"','Other "+ftVal+" Details ','"+hgt+"','"+ctrlwidth+"');\" class=link >Add More </a></div>";
document.getElementById('divContainer_'+id).innerHTML=strInnerContent;
}
else{
divObj.innerHTML="";
divObj.style.display='none';
}

}


}



////////////////////////////////////////



function isNumber( obj,permitDecimal ){

var val= document.getElementById(obj).value;
var te=val.match(/\d+\.?\d*/);
document.getElementById(obj).value=te;
val=te;

if(val!=""){
if( isNaN(val) ){
endOFString=val.length-1;
val=val.substring(0,endOFString);
}
if(!permitDecimal){
if(val){
val=val.toString();
document.getElementById(obj).value=val.replace(/\./g,'');
}
}else{
document.getElementById(obj).value=val;
}

}
}



////////////////////////////////////////





function toNonFormatedStyle( obj ){

val= document.getElementById(obj).value;

if(val.indexOf('(')==0){
val=val.replace(/[\(\)\-\s]/g,'');
document.getElementById(obj).value=val;
}
}



////////////////////////////////////////




function toPhoneFormat( obj ){
val= document.getElementById(obj).value;

arrChars=val.split('');
formatedString='';
for(i=0;i < val.length;i++){
if(i==0)
formatedString+='(';
if(i==3)
formatedString+=') ';
if(i==6)
formatedString+='-';

formatedString+=arrChars[i];
}
document.getElementById(obj).value=formatedString;
}

////////////////////////////////////////




</script>
<style>
.txt{
font-size:14;
color:maroon; font-family:Arial;
}

.rad{
font-size:12; background-color:#ECEFFF; height:16px
color:#161616; font-family:Arial; padding-left:4px; padding-right:2px;float:left; border:1px solid gray; width:45px; margin-right:2px; padding-bottom:4px;
}

.rad input {margin-top:3px;}


</style>








<table>

<tr><td colspan="2" >
<span id="contactpersons_span">
<div id="divContactpersons" style="height:25px">
<label> Name</label>  <input id="txtpersonname" type="text" name="personname[]" maxlength="25" style="width:125px">  
<label>Relation</label>  <input id="txtrelation" type="text" name="personrel[]" maxlength="25" style="width:125px">  
<label>Telephone</label>  <input id="txtpersontel" type="text" name="persontel[]" maxlength="20" style="width:125px" onfocus="toNonFormatedStyle('txtpersontel')" onkeyUP=" isNumber('txtpersontel',0);" onblur="toPhoneFormat('txtpersontel')">  
<label>Mobile</label>  <input id="txtpersonmob" type="text" name="personmob[]" maxlength="20" style="width:125px" onfocus="toNonFormatedStyle('txtpersonmob')" onkeyUP=" isNumber('txtpersonmob',0);" onblur="toPhoneFormat('txtpersonmob')">  
</div>
</span>
<div id="contactpersonremdiv" ><a onclick="addCtrl('txtpersonname*=*txtrelation*=*txtpersontel*=*txtpersonmob','personname*=*personrel*=*persontel*=*personmob','divContactpersons','contactpersons_span','Name*=*Relation*=*Telephone*=*Mobile','25px','125px','0*=*0*=*2*=*2');" class=link>Add More Contact Persons</a></div>
</td></tr>

</table>

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