jsselect多选列表传值代码_表单特效

来源：喜迪情感

<html> 
<head> 
<title>js select</title> 
 
/*移除左边选中的列表项到右边*/ 
function fMoveSelectedOptionsLeftToRight(oLeft,oRight) 
{ 
if(!(oLeft&&oRight)) 
{ 
return; 
} 
if(!hasOptions(oLeft)) 
{ 
return; 
} 
if(oLeft.selectedIndex==-1) 
{ 
oLeft.selectedIndex=0; 
} 
for(var i=0;i<oLeft.options.length;i++) 
{ 
if(oLeft.options[i].selected) 
{ 
var oOption = document.createElement("OPTION"); 
oOption.setAttribute("text",oLeft.options[i].text); 
oOption.setAttribute("value",oLeft.options[i].value); 
oRight.add(oOption); 
} 
} 
clearSelectedOptions(oLeft); 
} 
/*移除左边的所有列表项到右边*/ 
function fMoveAllOptionsLeftToRight(oLeft,oRight) 
{ 
if(!(oLeft&&oRight)) 
{ 
return; 
} 
if(!hasOptions(oLeft)) 
{ 
return; 
} 
for(var i=0;i<oLeft.options.length;i++) 
{ 
var oOption = document.createElement("OPTION"); 
oOption.setAttribute("text",oLeft.options[i].text); 
oOption.setAttribute("value",oLeft.options[i].value); 
oRight.add(oOption); 
} 
clearAllOptions(oLeft); 
} 
/*移除右边选中的列表项到左边*/ 
function fMoveSelectedOptionsRightToLeft(oLeft,oRight) 
{ 
if(!(oLeft&&oRight)) 
{ 
return; 
} 
if(!hasOptions(oRight)) 
{ 
return; 
} 
if(oRight.selectedIndex==-1) 
{ 
oRight.selectedIndex=0; 
} 
for(var i=0;i<oRight.options.length;i++) 
{ 
if(oRight.options[i].selected) 
{ 
var oOption = document.createElement("OPTION"); 
oOption.setAttribute("text",oRight.options[i].text); 
oOption.setAttribute("value",oRight.options[i].value); 
oLeft.add(oOption); 
} 
} 
clearSelectedOptions(oRight); 
} 
/*移除右边的所有列表项到左边*/ 
function fMoveAllOptionsRightToLeft(oLeft,oRight) 
{ 
if(!(oLeft&&oRight)) 
{ 
return; 
} 
if(!hasOptions(oRight)) 
{ 
return; 
} 
for(var i=0;i<oRight.options.length;i++) 
{ 
var oOption = document.createElement("OPTION"); 
oOption.setAttribute("text",oRight.options[i].text); 
oOption.setAttribute("value",oRight.options[i].value); 
oLeft.add(oOption); 
} 
clearAllOptions(oRight); 
} 
/*清空select所有options*/ 
function clearAllOptions(oSelect) 
{ 
if(oSelect) 
{ 
var ops=oSelect.options; 
while(ops.length>0) 
{ 
oSelect.remove(ops.length-1); 
} 
} 
} 
/*清空select所有选中的options*/ 
function clearSelectedOptions(oSelect) 
{ 
if(oSelect) 
{ 
for(var i=0;i<oSelect.options.length;i++) 
{ 
if(oSelect.options[i].selected) 
{ 
oSelect.remove(i--); 
} 
} 
} 
} 
/*判断select是否有options*/ 
function hasOptions(oSelect) 
{ 
if(oSelect) 
{ 
return oSelect.options.length>0; 
} 
return false; 
} 
function checkForm(){ 
var onRight=document.forms[0].rightItem; 
alert(onRight.options.length); 
for(var i=0;i<onRight.options.length;i++){ 
var text=onRight.options[i].text; 
var value=onRight.options[i].value; 
alert(value+" "+text); 
} 
} 
</ script> 
</head> 
<body> 
 
</body> 
</html>

[Ctrl+A 全选注:如需引入外部Js需刷新才能执行]

js核心代码
代码如下:
/*移除左边选中的列表项到右边*/
function fMoveSelectedOptionsLeftToRight(oLeft,oRight)
{
if(!(oLeft&&oRight))
{
return;
}
if(!hasOptions(oLeft))
{
return;
}
if(oLeft.selectedIndex==-1)
{
oLeft.selectedIndex=0;
}
for(var i=0;i{
if(oLeft.options[i].selected)
{
var oOption = document.createElement("OPTION");
oOption.setAttribute("text",oLeft.options[i].text);
oOption.setAttribute("value",oLeft.options[i].value);
oRight.add(oOption);
}
}
clearSelectedOptions(oLeft);
}
/*移除左边的所有列表项到右边*/
function fMoveAllOptionsLeftToRight(oLeft,oRight)
{
if(!(oLeft&&oRight))
{
return;
}
if(!hasOptions(oLeft))
{
return;
}
for(var i=0;i{
var oOption = document.createElement("OPTION");
oOption.setAttribute("text",oLeft.options[i].text);
oOption.setAttribute("value",oLeft.options[i].value);
oRight.add(oOption);
}
clearAllOptions(oLeft);
}
/*移除右边选中的列表项到左边*/
function fMoveSelectedOptionsRightToLeft(oLeft,oRight)
{
if(!(oLeft&&oRight))
{
return;
}
if(!hasOptions(oRight))
{
return;
}
if(oRight.selectedIndex==-1)
{
oRight.selectedIndex=0;
}
for(var i=0;i{
if(oRight.options[i].selected)
{
var oOption = document.createElement("OPTION");
oOption.setAttribute("text",oRight.options[i].text);
oOption.setAttribute("value",oRight.options[i].value);
oLeft.add(oOption);
}
}
clearSelectedOptions(oRight);
}
/*移除右边的所有列表项到左边*/
function fMoveAllOptionsRightToLeft(oLeft,oRight)
{
if(!(oLeft&&oRight))
{
return;
}
if(!hasOptions(oRight))
{
return;
}
for(var i=0;i{
var oOption = document.createElement("OPTION");
oOption.setAttribute("text",oRight.options[i].text);
oOption.setAttribute("value",oRight.options[i].value);
oLeft.add(oOption);
}
clearAllOptions(oRight);
}
/*清空select所有options*/
function clearAllOptions(oSelect)
{
if(oSelect)
{
var ops=oSelect.options;
while(ops.length>0)
{
oSelect.remove(ops.length-1);
}
}
}
/*清空select所有选中的options*/
function clearSelectedOptions(oSelect)
{
if(oSelect)
{
for(var i=0;i{
if(oSelect.options[i].selected)
{
oSelect.remove(i--);
}
}
}
}
/*判断select是否有options*/
function hasOptions(oSelect)
{
if(oSelect)
{
return oSelect.options.length>0;
}
return false;
}