Script run for multi layer same name

[ANCHINGO]

I have a script

function doesLayerExist(layers, name) {
    for (i=0; i<layers.length; i++) {
        if (layers.name==name) return true;
    }
    return false;
}
if (doesLayerExist(app.activeDocument.layers, "MTN")) {
    // command
}

But it run for one layer name "MTN", not run for multi layer name "MTN".

Please help me fix it.

Thank in advance!!!

[Kukurykus · Accepted solution]

In your code when loop in function finds first 'MTN' layer it returns result and function is stopped. Try this:

len = (lyrs = activeDocument.layers).length
for(i = 0; i < len; i++) { 
    if (lyrs.name == 'MTN') alert(true)
}

[ANCHINGO]

thank for helpful!

[r-bin]

What are you really going to do instead of

// command

?

[ANCHINGO]

something, example: bright up for all layer name "MTN"