打造个性化的Select(可编辑)

由于系统自带的Select实在是不好用,这里我用javascript写了一个全新的Select.

功能:
  1.可编辑的Select
  2.长度可以随意修改
  3.可以遮盖系统Select
  4.支持forms 
  5.支持CSS修改外观
  6.修正在IE 5.0上运行出错的问题
  7.支持使用js脚本
使用方法
[b]var 实体化变量=new editselect(名字,长度,默认字符串,宽度,高度,只读)[/b]
[b]实体化变量.add(option数值,JS脚本)[/b]

这只是一个测试版,很多功能没有完善,比如没有区分value和caption等等,希望大家提出宝贵意见.

EditSelect

function isIE(){
a=navigator.appVersion.split(";")
b=a[1].split(" ")
return parseFloat(b[2])
}

if (isIE()

selectÁÐ表

'
}
else
{
scHTML='

selectÁÐ表

'
}

document.write(scHTML)
vDiv=selectcontent
vDivHtml=selecthtml

function editselect(name,size,defaulttext,width,height,readonly){
var combo=this;
this.options=new Array();
this.oj=new Array();
this.name=name;
this.divname=name+'_div';
this.buttonname=name+'_button';
this.tablename=name+'_table';
this.htmltable=name+'_html'
if (!height) this.height=0; else this.height=height
if (width) this.width=width
if (!size) size=8
if (!defaulttext) defaulttext=""
if (!readonly || readonly==0) {readonly="" }else {if (readonly==1) readonly="readonly style=cursor:default";this.readonly=1}

esHTML='

'
+'

'
+'

'
document.write(esHTML)
this.sbutton=eval("document.all."+this.buttonname)

if (this.readonly==1) eval("document.all."+this.name).onclick=function(){combo.show()}

this.sbutton.onclick=function(){combo.show()}
this.show=function(){
pDiv=eval(combo.divname)
pTable=eval(combo.tablename)
var vHTML='

"
vDivHtml.innerHTML=vHTML

vtop=pDiv.offsetTop+pDiv.offsetHeight
vleft=pDiv.offsetLeft+2

vParent = pDiv.offsetParent;
while (vParent.tagName.toUpperCase() != "BODY")
{
vleft += vParent.offsetLeft;
vtop += vParent.offsetTop;
vParent = vParent.offsetParent;
}

var redge=document.body.clientWidth-vleft
var bedge=document.body.clientHeight-vtop

if (!combo.width) {vDiv.style.width=pTable.offsetWidth} else {vDiv.style.width=combo.width}

if (combo.height==0)
{
vDiv.style.pixelHeight=parseInt(htmltable.offsetHeight)+2
vDivHtml.style.pixelHeight=parseInt(htmltable.offsetHeight)+2
}
else
{
if (htmltable.offsetHeight>combo.height)
{
vDiv.style.pixelHeight=combo.height
vDivHtml.style.pixelHeight=combo.height

}
else
{

vDiv.style.pixelHeight=parseInt(htmltable.offsetHeight)+2
vDivHtml.style.pixelHeight=parseInt(htmltable.offsetHeight)+2
}

}

vDivHtml.scrollTop=0

if (redge

.selecttext{
border:0px
height: 16;
font-family:arial;
font-size:12px;
}
.selectbutton{
font-family:webdings;
font-size:10px;
height: 19;
width: 16;
border:1px solid #83A5EB;
line-height:0px;
padding-bottom:3px;
background-color:#D1E0FD
}
.selecttable{
font-family:arial;
font-size:12px;
cursor:default;
}
.selectcontent
{
position: absolute;
top:0;
left:0;
overflow:auto;
border:1px solid #000000
}

.selectdiv
{
position: absolute;
width:100;
overflow:hidden;
}
.select{
border-collapse: collapse;
border:1px solid #7F9DB9
}

[Ctrl+A 全选 注:如需引入外部Js需刷新才能执行]