Display random image

[varkin80]

Hey all. Creating my first form in LiveCycle. Haven't a clue as to what I'm doing... maybe someone can help.

I don't know javascript, so I usually just use trial and error until I figure it out... but I just can't get this to work.

I have 20 images on my form (named ImageField#hg), invisible. I want to display a random image when I click a button.

Here is the code I thought would work.... it's placed in the Click script section on a button.

var one = "ImageField";

var two = "hg";

var rannumb = Math.floor(Math.random() * 19+1);

var showg = one + rannumb + two;

showg.presence = "visible";

If I test the output in a text box, I get ImageField#hg (# being the random number), so why doesn't it actually execute the .presence action?

Thank you.

-James

[varkin80]

I've been trying to change my thinking on this and came up with different code, but it still won't work properly.

This frist script actually does change the images to visible... however, it's processing the variable for some reason and both images become visible on click. I didn't know variable would do anything unless called.

var one = ImageField1hg.presence = "visible";

var two = ImageField2hg.presence = "visible";

var rannumb = Math.floor(Math.random() * 19+1);

var newnumb = WordNum(rannumb);

testing.rawValue = newnumb; // test field to see output doesn't show anything

newnumb;

So I changed the script to the following and it does nothing.

var one = ImageField1hg.presence;

var two = ImageField2hg.presence;

var rannumb = Math.floor(Math.random() * 19+1);

var newnumb = WordNum(rannumb);

testing.rawValue = newnumb; // test field to see output doesn't show anything

newnumb = "visible";

Back to the drawing board...

[varkin80]

Update:

Well I figured out I had mixed Javascript & FormCalc code...

I moved the random math function to a different field to use javascript.

Now my WordNum function works.

getran.execInitialize() // run script to make new random number

var one = ImageField1hg.presence

var two = ImageField2hg.presence

var getnumber = getran.rawValue // get random number from field

var newnumb = WordNum(getnumber) // change random number into text to match variables

testing.rawValue = newnumb // conversion test does product correct text number

newnumb = "visible" // does nothing.....

I think I might have to go back to a ifelse statment... just seems like there should be a better way.