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can I use parameter to call loadXMLDoc() from html? (ajax)

Answer 1

+1 A:

jQuery was made for this type of work. Just in general, you don't want to have all that boilerplate on top to create an XHR object.

Specifically, I like passing object literals around to make this type of generic code possible:

function generic(params) {
   if (params.div && params.div instanceof Array && params.div.size() > 0) {
      //multiple divs handling goes here
   }
   ajax(params.url, params.params);
}


generic({
  divs: ['div1','div2'],
  url: 'http://google.com',
  params: {
    param1:'hello',
    param2:'hi'
  }
})

Anatoly G 2010-10-19 06:41:46

do I have to use jQuery or can I do it using pure Ajax like in here? http://www.w3schools.com/ajax/tryit.asp?filename=tryajax_first

Radek 2010-10-19 22:20:57

You can use whatever you like, but there is nothing unpure about jQuery AJAX. All it is is a centralized, well developed, cross-browser implementation of AJAX. Essentially, it's a library you can re-use anywhere. The above does not depend on jQuery. It's just plain Javascript

Anatoly G 2010-10-20 02:05:46

I just didn't want to introduce jQuery because of one little thing. And also it helped me to understand how it works ... thank you for your help.

Radek 2010-10-20 22:06:43

Answer 2

+1 A:

the scripts needs to be called simply via function loadXMLDoc(what_to_run)

<script type='text/javascript'>
  //<![CDATA[
    function loadXMLDoc(what_to_run)
    {
      if (window.XMLHttpRequest)
        {// code for IE7+, Firefox, Chrome, Opera, Safari
        xmlhttp=new XMLHttpRequest();
        }
      else
        {// code for IE6, IE5
        xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
        }
      xmlhttp.onreadystatechange=function()
        {
        document.getElementById(what_to_run).innerHTML="<BLINK> processing ...</BLINK>"
        if (xmlhttp.readyState==4 && xmlhttp.status==200)
          {
          document.getElementById(what_to_run).innerHTML=xmlhttp.responseText;
          }
        }
      xmlhttp.open("GET","/ajaxrun?run="+what_to_run,true);
      xmlhttp.send();
    }
  //]]>

and bit from <BODY>

    <td>
      <button onclick='loadXMLDoc("login_build")' type='button'>

        run
      </button>
    </td>
    <td>
      <div id='login_build'>script results</div>
    </td>

Radek 2010-10-20 01:05:34

+1 for perseverance :)

kfl62 2010-10-20 06:10:01

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can I use parameter to call loadXMLDoc() from html? (ajax)

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