IDC资讯中心
1、
<html>
<head>
<public>
<component tagname="combobox">
<property name="text" get="get_text" put="put_text">
<property name="width" get="get_width" put="put_width">
<method name="setfocus" internalname="htcfocus">
<method name="additems" internalname="htcadditems">
<event name="onyycenter" id="identer">
<event name="onyycchoose" id="idchoose">
<attach event="oncontentready" onevent="htcinit()">
</component>
</public>
<script language="javascript">
function htcinit()
{
defaults.viewlink=document;
defaults.viewinheritstyle=false;
body_init();
}
function htcadditems(items)
{
var i,len;
len=pcombo.options.length;
for(i=0;i<len;i++)
{pcombo.remove(0);}
for(i=0;i<items.length;i++)
{
var o;
if((typeof items[i])==string)
{
if(!hasthevalue(items,i))
{
o=document.createelement(option);
o.text=items[i];
pcombo.add(o);
}
}
}
}
function htcfocus()
{
ptext.focus();
}
function get_text()
{
return ptext.value;
}
function put_text(value)
{
ptext.value=value;
}
function get_width()
{
return pcombo.style.width;
}
function put_width(value)
{
pcombo.style.width=value;
}
</script>
<script language="javascript">
function body_init()
{
var iright=pcombo.clientwidth;
var ibottom=pcombo.clientheight;
var ileft=(pcombo.clientwidth-18);
pcombo.style.clip=rect(0,+iright+,+ibottom+,+ileft+);
ptext.style.width=(pcombo.clientwidth);
ptext.style.height=(pcombo.clientheight);
ptext.style.top=0;
ptext.style.left=0;
}
function combo_select()
{
ptext.value=pcombo.options[pcombo.selectedindex].text;
}
function text_chkkey()
{
if(event.keycode==13)
{
identer.fire();
}
}
function hasthevalue(sitems,i)
{
var ii;
for(ii=0;ii<i;ii++)
{
if(sitems[ii]==sitems[i])
return true;
}
return false;
}
</script>
</head>
<body>
<select style="position:absolute;left:0;top:0;" onchange="combo_select()" name="pcombo">
</select>
<input style="position:absolute;left:0;top:0;z-index:4000" onkeypress="text_chkkey()" type="text" name="ptext">
</body>
</html>
2、
function getleftpostion( theobj )
{
var pos = 0;
while ( theobj != null )
{
pos += theobj.offsetleft;
//get the object which contain theobj.
theobj = theobj.offsetparent;
}
return pos;
}
function gettoppostion( theobj )
{
var pos = 0;
while ( theobj != null )
{
pos += theobj.offsettop;
//get the object which contain theobj.
theobj = theobj.offsetparent;
}
return pos;
}
function checkversion()
{
var isbadversion=true;
var curver=navigator.appversion;
var pos=parseint(curver.indexof("msie"));
if (pos>=1)
{
var intver=parseint(curver.charat(pos+5));
if (intver>=5)
{ isbadversion=false;}
}
if (isbadversion)
{
var msg="this page may not be displayed properly:\n"+
" this product requires microsoft internet explorer 5 or later browser only.";
alert(msg);
}
}
//check the browser version
checkversion();
// the array of comboboies
thearray = new array();
function combobox(objid, objhandler)
{
this.comobj = document.all[objid];
this.comobj.selectedindex = -1;
this.getvalue = getvalue;
this.doresize = doresize;
this.dochange = dochange;
this.losefocus = losefocus;
this.doselectidx = doselectidx;
this.focus = focus;
this.keypress = keypress;
this.change = change;
var strmsg="";
//——————————————————————————————————
// create the text object
//——————————————————————————————————
var txtobjidname = objid + "_text";
if (document.all[txtobjidname] != null)
{
strmsg="the following id: " + txtobjidname +" is used internally by the combo box!\r\n"+
"use of this id in your page may cause malfunction. please use another id for your controls.";
alert(strmsg);
}
var txtinner = "<input type=text id=" + txtobjidname + " name=" + txtobjidname + " onblur=" + objhandler + ".losefocus() " + " onkeyup=" + objhandler + ".keypress()" + " onchange=" + objhandler + ".keypress()" + " style=display: none; position: absolute value= >";
this.comobj.insertadjacenthtml("afterend", txtinner);
this.txtobj = document.all[txtobjidname];
//——————————————————————————————————
// end
//——————————————————————————————————
this.beresizing = false;
this.doresize();
thearray[thearray.length] = this;
}
function losefocus()
{
var thecomobj = this.comobj;
var thetxtobj = this.txtobj;
var i;
thecomobj.selectedindex = -1;
if (thetxtobj.value == "")
{
return;
}
var optlen = thecomobj.options.length;
for (i=0; i<optlen; i++)
{
var comval = thecomobj.options[i].text;
var txtval = thetxtobj.value;
if (comval == txtval)
{
thecomobj.selectedindex = i;
return;
}
}
}
function doresize()
{
if (!this.beresizing)
{
this.beresizing = true;
this.txtobj.style.display="none";
this.comobj.style.position="static";
this.txtobj.style.posleft = getleftpostion(this.comobj);
this.txtobj.style.postop = gettoppostion(this.comobj) + 1;
this.txtobj.style.poswidth = this.comobj.offsetwidth – 16;
this.txtobj.style.posheight = this.comobj.offsetheight;
this.comobj.style.position ="absolute";
this.comobj.style.posleft = this.txtobj.style.posleft;
this.comobj.style.postop = this.txtobj.style.postop;
this.offwidth = this.comobj.offsetwidth;
var strrect = "rect(0 "+(this.comobj.offsetwidth)+" "+ this.comobj.offsetheight + " "+(this.txtobj.style.poswidth – 2 )+")";
this.comobj.style.clip = strrect;
this.txtobj.style.display="";
this.beresizing = false;
}
}
function dochange()
{
var idx = this.comobj.selectedindex;
var opt = this.comobj.options[idx];
this.txtobj.value = opt.text;
this.txtobj.focus();
this.txtobj.select();
this.comobj.selectedindex=-1;
}
function getvalue()
{
return this.txtobj.value;
}
function doselectidx(i)
{
var optlen = this.comobj.options.length;
if ((i >=0) && (i < optlen))
{
this.comobj.selectedindex = i;
this.txtobj.value = this.comobj.options[i].text;
return;
}
this.txtobj.value = "";
}
function focus()
{
this.txtobj.focus();
}
/*resize all combobox when window be resized*/
function resetallsize()
{
var i;
for (i=0; i < thearray.length; i++)
{
thearray[i].doresize();
}
}
////////////////定位函数开始，我加的///////////////
function keypress()
{
var txtstr;
var comstr;
var maxint = 0;
var defint = 0;
var defj;
txtstr = this.txtobj.value;
//document.form1.test.value=txtstr;
var j;
for(j=0;j<this.comobj.options.length;j++)
{
comstr = this.comobj.options[j].text;
var m;
for(m=0;m<txtstr.length+1;m++)
{
if(txtstr.charcodeat(m) != comstr.charcodeat(m))
{
maxint = m;
break;
}
}
if (defint < maxint)
{
defint = maxint;
defj = j;
}
}
this.comobj.selectedindex = defj;
}
