javascript技巧总结（一）_Javascript教程(9)_H5之家 - 中国HTML5教程资源分享第一站

<body>
<a href="javascript:location.href=location.href + '?a=1&b=2'">search</a>
<script language="JavaScript">

</script>
</body>
提示：您可以先修改部分代码再运行
//可编辑SELECT

<input type=text name=re_name style="width:100px;height:21px;font-size:10pt;"><span style="width:18px;border:0px solid red;"><select name="r00" style="margin-left:-100px;width:118px; background-color:#FFEEEE;" onChange="document.all.re_name.value=this.value;">
                <option value="1">11111111<option>
                <option value="2">222222</option>
                <option value="3">333333</option>
              </select>
              </span>
    提示：您可以先修改部分代码再运行
//设置光标位置

function getCaret(textbox)
{
var control = document.activeElement;
textbox.focus();
var rang = document.selection.createRange();
rang.setEndPoint("StartToStart",textbox.createTextRange())
control.focus();
return rang.text.length;
}
function setCaret(textbox,pos)
{
try
{
var r =textbox.createTextRange();
   r.moveStart('character',pos);
   r.collapse(true);
   r.select();
}
catch(e)
{}
}
function selectLength(textbox,start,len)
{
try
{
var r =textbox.createTextRange();

r.moveEnd('character',len-(textbox.value.length-start));
r.moveStart('character',start);

r.select();
}
catch(e)
{//alert(e.description)}
}
function insertAtCaret(textbox,text)
{
textbox.focus();
document.selection.createRange().text = text;
}
//页内查找

function findInPage(str)
{
var txt, i, found,n = 0;
if (str == "")
{
return false;
}
txt = document.body.createTextRange();
for (i = 0; i <= n && (found = txt.findText(str)) != false; i++)
{
txt.moveStart("character", 1);
txt.moveEnd("textedit");
}
if (found)
{
txt.moveStart("character", -1);
txt.findText(str);
txt.select();
txt.scrollIntoView();
n++;
}
else
{
if (n > 0)
{
   n = 0;
   findInPage(str);
}
else
{
   alert(str + "...            您要找的文字不存在。\n \n请试着输入页面中的关键字再次查找！");
}
}
return false;
}