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<!-- 把如下代码加入<body>区域中 --><!-- http://www.vevb.com --><!-- bbs http://www.vevb.com/bbs--><SCRipT LANGUAGE="javaScript"><!-- Beginvar arrItems1 = new Array();var arrItemsGrp1 = new Array();arrItems1[3] = "Truck";arrItemsGrp1[3] = 1;arrItems1[4] = "Train";arrItemsGrp1[4] = 1;arrItems1[5] = "Car";arrItemsGrp1[5] = 1;arrItems1[6] = "Boat";arrItemsGrp1[6] = 2;arrItems1[7] = "Submarine";arrItemsGrp1[7] = 2;arrItems1[0] = "Planes";arrItemsGrp1[0] = 3;arrItems1[1] = "Ultralight";arrItemsGrp1[1] = 3;arrItems1[2] = "Glider";arrItemsGrp1[2] = 3;var arrItems2 = new Array();var arrItemsGrp2 = new Array();arrItems2[21] = "747";arrItemsGrp2[21] = 0arrItems2[22] = "Cessna";arrItemsGrp2[22] = 0arrItems2[31] = "Kolb Flyer";arrItemsGrp2[31] = 1arrItems2[34] = "Kitfox";arrItemsGrp2[34] = 1arrItems2[35] = "Schwietzer Glider";arrItemsGrp2[35] = 2arrItems2[99] = "Chevy Malibu";arrItemsGrp2[99] = 5arrItems2[100] = "Lincoln LS";arrItemsGrp2[100] = 5arrItems2[57] = "BMW Z3";arrItemsGrp2[57] = 5arrItems2[101] = "F-150";arrItemsGrp2[101] = 3arrItems2[102] = "Tahoe";arrItemsGrp2[102] = 3arrItems2[103] = "Freight Train";arrItemsGrp2[103] = 4arrItems2[104] = "Passenger Train";arrItemsGrp2[104] = 4arrItems2[105] = "Oil Tanker";arrItemsGrp2[105] = 6arrItems2[106] = "Fishing Boat";arrItemsGrp2[106] = 6arrItems2[200] = "Los Angelas Class";arrItemsGrp2[200] = 7arrItems2[201] = "Kilo Class";arrItemsGrp2[201] = 7arrItems2[203] = "Seawolf Class";arrItemsGrp2[203] = 7function selectChange(control, controlToPopulate, ItemArray, GroupArray){ var myEle ; var x ; // Empty the second drop down box of any choices for (var q=controlToPopulate.options.length;q>=0;q--) controlToPopulate.options[q]=null; if (control.name == "firstChoice") { // Empty the third drop down box of any choices for (var q=myChoices.thirdChoice.options.length;q>=0;q--) myChoices.thirdChoice.options[q] = null; } // ADD Default Choice - in case there are no values myEle = document.createElement("option") ; myEle.value = 0 ; myEle.text = "[SELECT]" ; controlToPopulate.add(myEle) ;for ( x = 0 ; x < ItemArray.length ; x++ ) { if ( GroupArray[x] == control.value ) { myEle = document.createElement("option") ; myEle.value = x ; myEle.text = ItemArray[x] ; controlToPopulate.add(myEle) ; } }}// End --></script><form name=myChoices><table align="center"><tr><td><SELECT id=firstChoice name=firstChoice onchange="selectChange(this, myChoices.secondChoice, arrItems1, arrItemsGrp1);"> <option value=0 SELECTED>[SELECT]</option> <option value=1>Land</option> <option value=2>Sea</option> <option value=3>Air</option></SELECT></TD><TD><SELECT id=secondChoice name=secondChoice onchange="selectChange(this, myChoices.thirdChoice, arrItems2, arrItemsGrp2);"></SELECT><SELECT id=thirdChoice name=thirdChoice></SELECT></TD></TR></TABLE></form>
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