Selenium and JavascriptExecutor, running existing code on page

There is this line of code on a page that I would like to execute:

<a href="javascript:clickOnNode(0,4)" shape=""></a><img name="someimage" src="someimage">

It's a clickable link and I would like to know how to just run that code rather than using "find element by".

My code that I've been running is below, however it doesn't work.

JavascriptExecutor js = (JavascriptExecutor) driver;
js.executeScript("clickOnNode(0,4);");

Any ideas on what I'm doing wrong here?

EDITS:

This is the code I'm currently using.

driver.navigate().to("someWebsite.com");

        Thread.sleep(10000);

        JavascriptExecutor js = (JavascriptExecutor) driver;
        js.executeScript("clickOnNode(0,4);");

        wait.until(ExpectedConditions.visibilityOfElementLocated(By.cssSelector("img[name='nodeIcon4']")));
        driver.findElement(By.cssSelector("img[name='nodeIcon4']")).click();

Here is the output I am getting when I run the code:

org.openqa.selenium.JavascriptException: Error executing JavaScript

and for the wait for nodeIcon4 lines:

org.openqa.selenium.TimeoutException: Expected condition failed: waiting for visibility of element located by By.cssSelector: img[name='nodeIcon4'] (tried for 10 second(s) with 500 milliseconds interval)

I also tried running pburgr's code with

        wait.until(ExpectedConditions.visibilityOfElementLocated(By.xpath("//a[contains(@name,'nodeIcon4')]")));
    driver.findElement(By.xpath("//a[contains(@name,'nodeIcon4')]")).click();

and got the following error:

Caused by: org.openqa.selenium.NoSuchElementException: Unable to find element with xpath == //a[contains(@name,'nodeIcon4')]

For more sanity checking:

• I know that having the hard sleep command is bad. You can scold me later ;-)
• I am limited to using IE and the webpage automatically emulates IE5. The webpage will not correctly load for anything later than IE5.
• I am pretty sure that I have security levels for zones correctly setup because I can log on to other sites and interact with elements on the page with my code. Unless the emulation is messing that up somehow.

I can give more details as needed.