Question

How can I pass an object to a function in innerHTML?

Here is an example:

function clickme()
{
  var coord = {x:5, y:10};
  testimageih(coord);
}

function testimageih(coord)
{
  var html = "<img id=\"sam1\" border=\"0\" name=\"sam1\" src=\"sample.gif\" " +
             "onLoad=\"ImageOnLoad(" + coord + ");\"></img>";
  document.getElementById("content").innerHTML = html;

}

function ImageOnLoad(coord)
{
  if (coord) alert("Success"); 
  else alert("Fail");
}

How can I pass this object, coord? It’s my only other recourse, at the moment, is passing coord.x and coord.y, instead of the object.

Thank you.

Answer 1

You could use document.createElement instead of innerHTML.

// Create the element
var element = document.createElement('img');
element.setAttribute('border', 0);
element.setAttribute('name', 'sam1');
element.setAttribute('src', 'sample.gif');

// Attach onLoad handler to it (passing it the object)
element.onload = function() { ImageOnLoad(coord) };

// Replace the contents of your... div?
var content = document.getElementById("content")
content.innerHTML = '';
content.appendChild(element);