項(xiàng)目添加

2019-11-21 02:16:43

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title>Untitled Document</title> <script language="javascript"> function addItem(objForm)  {   var valueAry=new Array();   var textAry=new Array();   var leftElement=objForm.elements["left"];   var rightElement=objForm.elements["right"];   var count=0;   var i,j,k,flag;   for(i=0;i<leftElement.options.length;i++)   {    if(leftElement.options[i].selected)    {valueAry[count]=leftElement.options[i].value;     textAry[count]=leftElement.options[i].text;     count++;    }   }   var count1=rightElement.options.length;   count1=count1>0?count1:0;   for(j=0;j<count;j++)   {    flag=false;    for(k=0;k<count1;k++)    {     if(rightElement.options[k].text==textAry[j])     flag=true;    }    if(!flag)   {     rightElement.options[count1]=new Option(textAry[j],valueAry[j]);     count1++;     }   }  } function subItem(objForm)  {   var i;   var objElement=objForm.elements["right"];   for(i=objElement.options.length-1;i>=0;i--)   {    if(objElement.options[i].selected)     objElement.options[i]=null;   }  } function addAllItem(objForm)  {   var i;   var leftElement=objForm.elements["left"];   for(i=0;i<leftElement.options.length;i++)   {    leftElement.options[i].selected=true;   }   addItem(objForm);  } function subAllItem(objForm)  {   var i;   var rightElement=objForm.elements["right"];   for(i=0;i<rightElement.options.length;i++)   rightElement.options[i].selected=true;   subItem(objForm);  } </script> </head> <body> <table width="200" cellpadding="0" cellspacing="0" border="0"> <form>  <tr>   <td width="80" rowspan="4"><select name="left"  style="width:80px;height:100px;" multiple>     <option>ITEM1</option>     <option>ITEM2</option>     <option>ITEM3</option>     <option>ITEM4</option>     <option>ITEM5</option>     <option>ITEM6</option>   </select></td>  <td width="40" height="20" align="center"><input type="button" value="  >> " onclick="addItem(this.form);"></td>   <td width="80" rowspan="4" align="right">  <select name="right"  style="width:80px;height:100px;" multiple>  </select> </td>  </tr>  <tr>   <td width="40" align="center"><input type="button" value=" <<  " onclick="subItem(this.form)"></td>  </tr>  <tr>   <td width="40" align="center"><input type="button" value="ALL>>" onclick="addAllItem(this.form)"></td>  </tr>  <tr>   <td width="40" align="center"><input type="button" value="<<ALL" onclick="subAllItem(this.form)"></td>  </tr> </form> </tr> </table> </body> </html>

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