var PatternSrc = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACcAAACyAgMAAAC8Zj5WAAAADFBMVEU1mcQAAAA1mcQ1mcQFya0nAAAABHRSTlMZAAkRJfDlNAAAAFtJREFUOMtjCIWBEAYyAcIEkpikgDMGh3nAyIAkK1bBwAqSbPsPA39Ism03DOwgyTaEI0myDeFIWtk2NJIGfW07bwwFNvRIiIgUNZoQB33SQIBBXEaNJsQhmRABdkqh2Grn4rYAAAAASUVORK5CYII='
var PatternImg = new Image();
