Tweeking a Page Dimension script...

How do i turn off math rounding (below) so i get exact page dimensions when the script is activated?

//This function adds static text variables in InDesign
//They won't be dynamically updated though.
//That's why we need the updating function below

function toTitleCase(s) { // By Trevor
return s.toLowerCase().replace(/\b\w/g, function () {return arguments[0].toUpperCase()});
}

function myRound(thisNumber, digits) { // By Trevor
digits = (digits) ? Math.pow(10, digits) : 1000;
return Math.round(thisNumber * digits) / digits;
}

function addVariables(openEvent){
if (!openEvent) return;
var doc = (openEvent.constructor == Document) ? openEvent : openEvent.parent; // By Trevor
while ( doc.constructor.name != "Document" )
{
if ( doc.constructor.name == "Application" ){ return; }

doc = doc.parent;
}

//Adding User name to text variables
createTextVariable(doc, "User name", $.getenv($.os[0] == "M" ? "USER" : "username") ); // changed by Trevor
//Adding Computer name to text variables
createTextVariable(doc, "HD Name", (Folder.system).parent.displayName );

//Adding Computer name to text variables
createTextVariable(doc, "Computer Name", getComputerName() );

//Adding a link to my website
createTextVariable(doc, "_About Loic Aigon", "Feel free to visit my website: http://www.loicaigon.com !" );

//Adding a link to my website
createTextVariable(doc, "_About Trevor", "Feel free to visit my website: http://www.creative-scripts.com !" ); // by Trevor

//Adding First Page Dimensions
createTextVariable(doc, "First Page Dimensions", getPageDimentions(doc.pages[0])); // by Trevor

//Adding Bleed
pagesize = app.activeDocument.textVariables.itemByName("Bleed");
pagesize.variableOptions.contents = ('' + app.activeDocument.documentPreferences.documentBleedBottomOffset + " in")

//Adding Margins
pagesize = app.activeDocument.textVariables.itemByName("Margins");
pagesize.variableOptions.contents = ('' + app.activeDocument.layoutWindows[0].activePage.marginPreferences.left + " in")

}

addVariables(app.properties.activeDocument); // callback by Trevor

//Generic function to add static custom text variables
function createTextVariable(target, variableName, variableContents){

var usernameVariable = target.textVariables.itemByName(variableName);
if(!usernameVariable.isValid){
usernameVariable = target.textVariables.add();
usernameVariable.variableType = VariableTypes.CUSTOM_TEXT_TYPE;
usernameVariable.name = variableName;
}
usernameVariable.variableOptions.contents = variableContents;
}


//Snippet for grabbing the deep name of the computer
function getComputerName(){ // by Trevor
return $.os[0] == "M" ? app.doScript("get computer name of (system info)", ScriptLanguage.APPLESCRIPT_LANGUAGE) : $.getenv("computername");
}

function getPageDimentions(page){ // by Trevor
var width, height, bounds, units, decPlaces;
// function presumes that normal pages
// i.e. same vertical and horizontal and no page shape transformations
decPlaces = 4;
units = toTitleCase(page.parent.parent.viewPreferences.horizontalMeasurementUnits.toString()); // If you forgot to include the toTitleCase function then remove the method
bounds = page.bounds;
height = bounds[2] - bounds[0];
height = myRound(height, decPlaces);
width = bounds[3] - bounds[1];
width = myRound(width, decPlaces);
return width + " X " + height + " " + units
}

//Add listeners to update file when opened.
app.addEventListener('afterOpen', addVariables);
// You might like to add some or all of these to make the update better
app.addEventListener('beforeSave', addVariables); // by Trevor
app.addEventListener('beforeSaveAs', addVariables); // by Trevor
app.addEventListener('beforeSaveACopy', addVariables); // by Trevor
app.addEventListener('beforeExport', addVariables); // by Trevor
app.addEventListener('beforePrint', addVariables); // by Trevor
app.addEventListener('beforeDeactivate', addVariables); // by Trevor
app.addEventListener('afterActivate', addVariables); // by Trevor