<!-- script中的相关代码 --> < script language = " JavaScript " > function ChangeMode3() ... { var i; var Mode ; var m = 1 ; var arr = new Array(); var arr1 = new Array(); for( i=0; i<document.forms[0].silo_cd.length; i++ ) ...{ if( document.forms[0].silo_cd.options[i].selected ) ...{ Mode = i ; m = 0; break; } } if ( m == 1 ) ...{ return false ; } var ln = document.forms[0].soko_cd2.options.length; for (var j = 0; j < ln; j++) ...{ arr[j] = document.forms[0].soko_cd2.options[j].value; arr1[j] = document.forms[0].soko_cd2.options[j].text; } arr[j] = document.forms[0].silo_cd.options[i].value ; arr1[j] = document.forms[0].silo_cd.options[i].text ; while (ln--) ...{ document.forms[0].soko_cd2.options[ln] = null; } for (i = 0; i < arr.length; i++) ...{ document.forms[0].soko_cd2.add (new Option(arr1[i], arr[i])); } document.forms[0].silo_cd.options[Mode] = null ; return false ;} function ChangeMode4() ... { var i; var Mode ; var m = 1 ; var arr = new Array(); var arr1 = new Array(); for( i=0; i<document.forms[0].soko_cd2.length; i++ ) ...{ if( document.forms[0].soko_cd2.options[i].selected ) ...{ Mode = i ; m = 0; break; } } if ( m == 1) ...{ return false ; } var ln = document.forms[0].silo_cd.options.length; for (var j = 0; j < ln; j++) ...{ arr[j] = document.forms[0].silo_cd.options[j].value; arr1[j] = document.forms[0].silo_cd.options[j].text; } arr[j] = document.forms[0].soko_cd2.options[i].value ; arr1[j] = document.forms[0].soko_cd2.options[i].text ; while (ln--) ...{ document.forms[0].silo_cd.options[ln] = null; } for (i = 0; i < arr.length; i++) ...{ document.forms[0].silo_cd.add (new Option(arr1[i], arr[i])); } document.forms[0].soko_cd2.options[Mode] = null ; return false ;} </ script > < form > < table > < tr > < td > < select size = " 20 " name = " silo_cd " STYLE = " font-size:12pt;width:100% " > < option value = " AAAAAAA " > AAAAAAA </ option > < option value = " BBBBBBB " > BBBBBBB </ option > < option value = " CCCCCCC " > CCCCCCC </ option > < option value = " DDDDDDD " > DDDDDDD </ option > </ select > </ td > </ tr > < tr > < td > < input type = " button " value = " ==> " onclick = " ChangeMode3() " /> < input type = " button " value = " <== " onclick = " ChangeMode4() " /> </ td > </ tr > < tr > < td > < select size = " 20 " name = " soko_cd2 " STYLE = " font-size:12pt;width:100% " > < option > zxcvb </ option > </ select > </ td > </ tr > </ table > </ form >