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一段javascript的页面搜索代码

2011-03-27 17:44 363 查看

一段javascript的页面搜索代码

/*

搜索文字核心程序,仿CRL+F,但功能更强的搜索

*/

<!--

var iFlag;

function search() {

var wPopupElements=wPopup.document.all;

if (wPopupElements.textcase.checked)

{iFlag=4;}

else

{iFlag=0;}

if (wPopupElements.searchtext.value==null || wPopupElements.searchtext.value=='')

{

wPopup.alert("请输入你要查找的文字");

return;

}

if (rng.findText(wPopupElements.searchtext.value,10000,iFlag)==true)

{

rng.select();

rng.scrollIntoView();

rng.moveStart("character");

}

else

{wPopup.alert("已查找到文档底部");}

}

function replace() {

var wPopupElements=wPopup.document.all;

if (wPopupElements.textcase.checked)

{iFlag=4;}

else

{iFlag=0;}

if (wPopupElements.searchtext.value==null || wPopupElements.searchtext.value=='')

{

wPopup.alert("请输入你要替换的文字");

return;

}

if (rng.findText(wPopupElements.searchtext.value,-10000,iFlag)==true)

{

rng.text = wPopupElements.replacetext.value;

}

else

{wPopup.alert("已替换到文档底部");}

}

function replaceall() {

var rng = document.body.createTextRange();

var wPopupElements=wPopup.document.all;

if (wPopupElements.textcase.checked)

{iFlag=4;}

else

{iFlag=0;}

if (wPopupElements.searchtext.value==null || wPopupElements.searchtext.value=='')

{

wPopup.alert("请输入你要替换的文字");

return;

}

for (i=0; rng.findText(wPopupElements.searchtext.value,10000,iFlag)!=false; i++)

{

rng.scrollIntoView();

rng.text = wPopupElements.replacetext.value;

}

setTimeout('wPopup.alert("共有"+i + " 项被替换")',200);

}

//-->

/*

弹出搜索窗口程序

*/

<!--

function gofind() {

wPopup=window.open('about:blank','','width=300 height=108 left=350 top=200 menubar=no resizeable=no scrollbars=no toolbar=no');

var wPopupDoc=wPopup.document;

wPopupDoc.open();

wPopupDoc.write('<html>/n');

wPopupDoc.write('<head>/n');

wPopupDoc.write('<title>文字搜索功能</title>/n');

wPopupDoc.write('<style>/n');

wPopupDoc.write('* {font-size:11px;font-family:"Tahoma","Verdana","Arial"}/n');

wPopupDoc.write('button {width:80}/n');

wPopupDoc.write('</style>/n');

wPopupDoc.write('</head>/n');

wPopupDoc.write('<body bgcolor="buttonface" leftmargin="0" topmargin="0">/n');

wPopupDoc.write('<table width="300" height="108" border="0" cellspacing="0" cellpadding="3" bgcolor="#F1F2DF">/n');

wPopupDoc.write('<tr>/n');

wPopupDoc.write('<td>查找:</td>/n');

wPopupDoc.write('<td><input
type="text" name="searchtext"
onchange="window.opener.rng=window.opener.document.body.createTextRange()"></td>/n');

wPopupDoc.write('<td><button
accesskey="S" name="searchbutton"
onclick="window.opener.search()">查找</button></td>/n');

wPopupDoc.write('</tr>/n');

wPopupDoc.write('<tr>/n');

wPopupDoc.write('<td>替换:</td>/n');

wPopupDoc.write('<td><input type="text" name="replacetext"></td>/n');

wPopupDoc.write('<td><button
accesskey="R" name="replacebutton"
onclick="window.opener.replace()">替换</button></td>/n');

wPopupDoc.write('</tr>/n');

wPopupDoc.write('<tr>/n');

wPopupDoc.write('<td colspan="2"><input type="checkbox" name="textcase" value="textcase">区分大小写</td>/n');

wPopupDoc.write('<td><button
accesskey="A" name="replaceallbutton"
onclick="window.opener.replaceall()">替换全部</button></td&
gt;/n');

wPopupDoc.write('</tr>/n');

wPopupDoc.write('<tr>/n');

wPopupDoc.write('<td colspan="2"> </td>/n');

wPopupDoc.write('<td><button
accesskey="C" name="cancelbutton"
onclick="window.close()">关闭</button></td>/n');

wPopupDoc.write('</tr>/n');

wPopupDoc.write('</table>/n');

wPopupDoc.write('</body>/n');

wPopupDoc.write('</html>/n');

wPopupDoc.close();

}

//-->
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