Delay And View

    /*
    This script shows some user interaction
    It has a delay function and rsets the view prefs
    
    */
    main();
    
    function main (){
        // create a doc
    var doc = app.documents.add({
            documentPreferences:{
                pageHeight:200,
                pageWidth:200
            }
    
    });
    
    var page = doc.pages.item(0); // get the first page
    
         app.activeWindow.activePage = page; // set the active page
         app.activeWindow.zoomPercentage = 100; // set the zoom
         app.activeWindow.zoom(ZoomOptions.FIT_PAGE);// fit the page
         // now lets switch into presentation mode
         app.activeWindow.screenMode = ScreenModeOptions.PRESENTATION_PREVIEW;
    
    delay(5); // this is the delay function wait 5 secs
    alert("I waited 5 seconds"); // tell it
    
    var user_time = prompt("Enter a Number","10"); // let the user decide how long
    
    delay(parseInt(user_time)); // you have to parse the String into a number
    
    alert("I waited another " + user_time+ " seconds"); // Talk again
    
         app.activeWindow.screenMode = ScreenModeOptions.PREVIEW_TO_PAGE; // reset the view
    
    // these are all the view options
    // look here http://jongware.mit.edu/idcs6js/pe_ScreenModeOptions.html
    // ScreenModeOptions.PRESENTATION_PREVIEW
    // ScreenModeOptions.PREVIEW_OFF 
    // ScreenModeOptions.PREVIEW_TO_BLEED
    // ScreenModeOptions.PREVIEW_TO_PAGE
    // ScreenModeOptions.PREVIEW_TO_SLUG
    
    
    
    }
    
    // delay function found here
    //found here http://www.wer-weiss-was.de/theme157/article1143593.html
    
    function delay(prmSec){
    prmSec *= 1000;
    var eDate = null;
    var eMsec = 0;
    var sDate = new Date();
    var sMsec = sDate.getTime();
    do {
    eDate = new Date();
    eMsec = eDate.getTime();
    } while ((eMsec-sMsec)<prmSec);
    } 

This example is a bit extended and makes a show

    main();
    function main(){
        
        var ph= 200;// page heigt
        var pw = 200;// page width

        var doc = app.documents.add({/*make a doc*/
          documentPreferences:{
            pageWidth:pw,
            pageHeight:ph
            }
        });
        
    app.activeWindow.screenMode = ScreenModeOptions.PRESENTATION_PREVIEW; // go to prsent mode

    var sentences =["This is the first sentence","This is the second","This is the third"];// this is our content
    var page = doc.pages[0]; // this is the page

    /*
    lets make a textframe that will hold our content

    when InDesign is running a script it seems impossilbe to
    show the content of a textframe. Thats why we need a workaround.

    We do as follows:
    - create a textframe
    - add the content
    - style the text
    - create a background that hides the frame
    - create outlines from the text without removing the original
        createOutlines(FALSE == dont remove original)
    - than we bring that polygon to the front
        so the textframe stays hidden but the outlines show

    after 3 seconds we:
    - remove the polygon
    - add new content the the textframe
    - createOutlines without deleting tf
    - move them to the front
    - show them 

    and so on...

    */

    var tf = page.textFrames.add({
            geometricBounds:[ph/2 - 25,12.7,ph/2+25,pw - 12.7],
            contents: sentences[0],
            textFramePreferences:{
                verticalJustification: VerticalJustification.CENTER_ALIGN
                }
            });


    var firstPar = tf.paragraphs.item(0); // get the first paragraph
    // set some properties
    firstPar.properties = {
                    pointSize: 10,
                    justification : Justification.CENTER_ALIGN,
                    hyphenation : false,
                    fillColor:doc.swatches[2]
                    };



    scale_till_overflow(firstPar); // scale it up. This is styling only

    var poly = tf.createOutlines(false); // if true the original gets deleted returns an Array
    /*
    cretaOutlines returns an array of polygons
    the first one is the one we need
    */
    poly[0].strokeWeight = 0; // give him no stroke

    /*

    add bg to hide tf
    everything gets stacked in the doc
    so bg created after tf will hide tf
    */

    var background_rect = page.rectangles.add({
      geometricBounds:[0,0,ph,pw],
      fillColor:doc.swatches[3]
    });

    poly[0].bringToFront(); // bring the polygon to the front

    delay(3); // wait

    alert("I waited 3 seconds");// warn

    poly[0].remove();// remove polygon

    tf.contents = sentences[1]; // now set the content of tf again

    scale_till_overflow(tf.paragraphs.item(0));// style it again

    poly = tf.createOutlines(false);// and make outlines again

    poly[0].bringToFront();// bring it to the front

    delay(5);// wait

    alert("Now I waited 5 seconds");// warn

    poly[0].remove();// delete the second polygon we created

    tf.contents = sentences[2];// set the text

    scale_till_overflow(tf.paragraphs.item(0));// style

    poly = tf.createOutlines(false);// and for the last time make a polygon

    poly[0].bringToFront(); // show it

    delay(1);// wait

    alert("Now I waited 1 seconds. bye bye");// warn

    poly[0].remove();// remove it
    tf.remove();
    background_rect.remove();
    app.activeWindow.screenMode =    ScreenModeOptions.PREVIEW_OFF ;// we are done
    doc.close(SaveOptions.NO);
    // done

    };// end of main


    function scale_till_overflow(par){

      var ptsz = par.pointSize; // get the actual pointsize

    // a while loop 
    // if the tf is not overlflowing scale up
    while(par.parent.overflows == false){
            
        par.pointSize = ptsz;
            ptsz++;
            }

    // now he has overflow so scale down again until the overflow is gon
    while(par.parent.overflows == true){
             ptsz--;
            par.pointSize = ptsz;
            }

    }

    // delay function
      // found here http://www.wer-weiss-was.de/theme157/article1143593.html
      
      function delay(prmSec){
      prmSec *= 1000;
      var eDate = null;
      var eMsec = 0;
      var sDate = new Date();
      var sMsec = sDate.getTime();
      do {
      eDate = new Date();
      eMsec = eDate.getTime();
      } while ((eMsec-sMsec)<prmSec);
      }