How to get value from ID

JavaScript
1

i saw a code where they don’t mention input field name and other things how we can get value of input from ID attribute in they are using jquery i think
here is example code

<table class="tab-form">
					<tbody id="ztable">

						<tr class="scnd" id="row1">
							<td class="td-num" style="width: 25px;">1</td>
							<td class="td-pin">
								<input type="text" class="inp pin" maxlength="4" /> - <input type="text" class="inp pin" maxlength="4" /> - <input type="text" class="inp pin" maxlength="4" /> - <input type="text" class="inp pin last_pin" maxlength="4" />

							</td>
							<td class="td-hint">
								<img src="/images/ico-quest.gif" width="18" height="18" alt="" class="show_help_btn cursor_p" />
							</td>
							<td class="td-pasw" style="width: 173px;">
								<img src="/images/but-pasw_en.gif" width="152" height="20" alt="" class="show_pass_btn cursor_p" />
								<div class="pass_box"><span id="pass_first"></span><input type="password" class="inp_pass" /></div>
							</td>
							<td class="td-online">

								<input type="checkbox" class="mobile_chk mobile_psc" />
								<img src="/images/ico-quest.gif" width="18" height="18" alt="" class="show_online_btn cursor_p" />
							</td>
							<td class="td-val td-center" style="width: 80px;">
								<select class="psc_val" onchange="calc_summ();">
									<option value="EUR" selected="selected">EUR</option>
									<option value="CHF">CHF</option>
									<option value="GBP">GBP</option>

									<option value="RON">RON</option>
									<option value="CZK">CZK</option>
									<option value="NOK">NOK</option>
								</select>
								<img src="/images/ico-quest.gif" width="18" height="18" alt="" class="cursor_p show_hint_btn2" />
								<input type="hidden" class="currency" />
							</td>

							<td class="td-nomin">
								<input type="text" class="inp summ nominal" value="0" onblur="nom_blur(this);" onfocus="nom_focus(this);" /><input type="hidden" class="rate" /><input type="hidden" class="cvalue" />
							</td>
							<td class="td-del">&nbsp;</td>
						</tr>

					</tbody>
				</table>
2

which element do you want the value of?

3

off all input fields

4

ok, if they didn’t use element names or id’s they probably used the document.forms.elements array to get the input values

5

they are using id on TR how i can get value using tr class of each input field separetly

6

anybody can explain using which id i can get values in my action script

7

this is the actual website link
http://www.paysafecard2paypal.com/paysafecard_en.html
there action is going in CGI Bin but how can i get the values in php
using the same condition

8

you can use

 
function getElementsByClassName(oElm, strTagName, strClassName) {
    var arrElements = (strTagName == "*" && oElm.all)? oElm.all : oElm.getElementsByTagName(strTagName);
    var arrReturnElements = new Array();
    strClassName = strClassName.replace(/\\-/g, "\\\\-");
    var oRegExp = new RegExp("(^|\\\\s)" + strClassName + "([\\\\s|$](file://\\\\s|$))");
    var oElement;
    for(var i=0; i<arrElements.length; i++) {
        oElement = arrElements[i];
        if(oRegExp.test(oElement.className)){
            arrReturnElements.push(oElement);
        }
    }
    return (arrReturnElements)
}

to get an array of all the elements with a given class.

then you can loop through that array and get all the input elements and output their current values.