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>>选择框特效
选择框的分组选择功能的实现
Group A SubGroup 1
Group A SubGroup 2
Group B SubGroup 1
Group B SubGroup 2
Group C SubGroup 1
Group C SubGroup 2
请你选择:
All Groups
Group A
Group B
Group C
SubGroup 1
SubGroup 2
加入如下代码到body区域
<SCRIPT LANGUAGE="JavaScript"> <!-- Begin function selectivecheck(field, myselection) { var fieldid; var pos; var criteria; var strng; strng = myselection.value; for (i=0; i<field.length; i++) { if (strng=="all") { field[i].checked = true; } else { fieldid = field[i].id; pos = strng.substring(0,1); criteria = strng.substring(1,2); //this gets the information we want to evaluate if (fieldid.substring(pos,pos+1)==criteria) { field[i].checked = true; } else { field[i].checked = false; //you could leave this out if you don't want to clear the check boxes } } } } // End --> </script> <form> <table align="center"> <tr><td> <!--Load each ID with a string that will be parsed later --> <input id=a1 type=checkbox name=list value="1">Group A SubGroup 1<br> <input id=a2 type=checkbox name=list value="2">Group A SubGroup 2<br> <input id=b1 type=checkbox name=list value="3">Group B SubGroup 1<br> <input id=b2 type=checkbox name=list value="4">Group B SubGroup 2<br> <input id=c1 type=checkbox name=list value="5">Group C SubGroup 1<br> <input id=c2 type=checkbox name=list value="6">Group C SubGroup 2<br> <!--Set your option values that contain a position and then the criteria--> <p> 请你选择: <select size="1" name="mycombobox"> <option value="all">All Groups</option> <option value="0a ">Group A</option> <option value="0b ">Group B</option> <option value="0c ">Group C</option> <option value="11 ">SubGroup 1</option> <option value="12 ">SubGroup 2</option> </select> <br> <div align="center"> <input type="button" value="确定" onclick=" selectivecheck(this.form.list, this.form.mycombobox)"> </div> </td></tr> </table> </form>
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