Multi-dimensional array in JavaScript

 function displayInventory(table) {
      document.write("<TABLE BORDER=ON>");
      document.write("<TH>Item Number</TH><TH>Item Name</TH><TH>Model Number</TH><TH>Quantity</TH>");
      for(x=1; x<=3; x++) {
        document.write("<TR><TD>",x,"</TD>");
        for(y=0; y<=2; y++){
          document.write("<TD>",table[x][y],"</TD>");
        }
        document.write("</TR>");
      }
      document.write("</TABLE>");
    }
    part1 = new Array("A","3",78);
    part2 = new Array("B","2",45);
    part3 = new Array("C","1","14");
    brakeParts = new Array("",part1,part2,part3);

    displayInventory(brakeParts);