Here is what I am doing:

I Added wordpress media upload with iframe popup when a button or link clicked. And with click of insert into post the image url placed on a textbox. 

**`send_to_editor()` function handles image insertion to editor**


    window.send_to_editor = function(html) {
    	 var imgurl = jQuery('img',html).attr('src');
    	 current_item.siblings('.upload_image').val(imgurl);
    	 current_item.parent().prepend('<div><img width="300" src="'+imgurl+'" alt="banner image" /></div>');
    	 tb_remove();
    	}


So, you see the default send_to_editor is edited and changed. Now when i try to upload the image from wordpress editor image uploaded and click insert image to post. It doesn't work.

**Question:** How do i multiple instance of `send_to_editor()` or parhaps creating and hook new js function to each instant of image uploader so they don't conflict?