(function(){
  var localVariable = 5;

  window.getLocalVar = function () { return localVariable; };
  window.setLocalVar = function (val) { localVariable = val; };
})();

alert( typeof localVariable);
alert( getLocalVar() );
setLocalVar(10);
alert( getLocalVar() );

var repeatCount = 100000;
var pattern = "text";
var arrayFixSize = new Array( repeatCount );
var startTime;
var counter;
var line = "";
var arr = [];


for( startTime = new Date(), counter = repeatCount; counter > 0; counter-- ) {
	line += pattern;
}

alert(
	'concatenate - ' + ( new Date() - startTime )
);

/*********************************************************/

for( startTime = new Date(), counter = repeatCount; counter > 0; counter-- ) {
	arr.push( pattern );
}

arr.join( '' );
alert(
	'array + push - ' + ( new Date() - startTime )
);

/*********************************************************/

for( startTime = new Date(), counter = repeatCount; counter > 0; counter-- ) {
	arrayFixSize[ counter ] = pattern;
}

arrayFixSize.join( '' );
alert(
	'array[ index ] - ' + ( new Date() - startTime )
);