js操作listbox

选择人员或者部门或其他时,经常会用到2个listbox,下面这js代码,希望能给大家以及自己带来方便

function SelectAll()

{

var lst1=window.document.getElementById("SourceListBox");

var length = lst1.options.length;

for(var i=0;i<length;i++)

{

var v = lst1.options[i].value;

var t = lst1.options[i].text;

var lst2=window.document.getElementById("DestinationListBox");

lst2.options[i] = new Option(t,v,true,true);

}

}

function DelAll()

{

var lst2=window.document.getElementById("DestinationListBox");

var length = lst2.options.length;

for(var i=length;i>0;i--)

{

lst2.options[i-1].parentNode.removeChild(lst2.options[i-1]);

}

}

function SelectOne()

{

var lst1=window.document.getElementById("SourceListBox");

var lstindex=lst1.selectedIndex;

if(lstindex<0)

return;

var v = lst1.options[lstindex].value;

var t = lst1.options[lstindex].text;

var lst2=window.document.getElementById("DestinationListBox");

lst2.options[lst2.options.length] = new Option(t,v,true,true);

}

function DelOne()

{

var lst2=window.document.getElementById("DestinationListBox");

var lstindex=lst2.selectedIndex;

if(lstindex>=0)

{

var v = lst2.options[lstindex].value+";";

lst2.options[lstindex].parentNode.removeChild(lst2.options[lstindex]);

}

}