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非常漂亮的当前页面内容搜索代码

网络 2008/6/8 20:20:24 深山行者字体:大中小浏览 9458

以下为详细代码

非常漂亮的当前页面内容搜索代码
<script>
var NS4 = (document.layers);
var IE4 = (document.all);
var win = this;
var n   = 0;
function findInPage(str)
{
var txt, i, found;
if (str == "" || str == "您要找的歌名")
return false;
if (NS4)
{
if (!win.find(str))
while(win.find(str, false, true))
n++;
else
n++;
if (n == 0) alert("[" + str + "]" + "没有找到您要的歌曲.请确认你输入的关键字是否正确!");
}
if (IE4)
{
txt = win.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 + "]" + "没有找到!");
}
}
return false;
}
//self.onError=null;
currentX = currentY = 0;
whichIt = null;
lastScrollX = - 180; lastScrollY =  - (screen.Height - 300);
NS = (document.layers) ? 1 : 0;
IE = (document.all) ? 1: 0;

function heartBeat() {
if(IE) { diffY = document.body.scrollTop; diffX = document.body.scrollLeft; }
if(NS) { diffY = self.pageYOffset; diffX = self.pageXOffset; }
if(diffY != lastScrollY) {	                percent = .1 * (diffY - lastScrollY);
if(percent > 0) percent = Math.ceil(percent);
else percent = Math.floor(percent);
if(IE) document.all.floater.style.pixelTop += percent;
if(NS) document.floater.top += percent;
lastScrollY = lastScrollY + percent;
}
if(diffX != lastScrollX) {
percent = .1 * (diffX - lastScrollX);
if(percent > 0) percent = Math.ceil(percent);
else percent = Math.floor(percent);
if(IE) document.all.floater.style.pixelLeft += percent;
if(NS) document.floater.left += percent;
lastScrollX = lastScrollX + percent;
}
}	

function checkFocus(x,y) {
stalkerx = document.floater.pageX;
stalkery = document.floater.pageY;
stalkerwidth = document.floater.clip.width;
stalkerheight = document.floater.clip.height;
if( (x > stalkerx && x < (stalkerx+stalkerwidth)) && (y > stalkery && y < (stalkery+stalkerheight))) return true;
else return false;
}
function grabIt(e) {
if(IE) {
whichIt = event.srcElement;
while (whichIt.id.indexOf("floater") == -1) {
whichIt = whichIt.parentElement;
if (whichIt == null) { return true; }
}
whichIt.style.pixelLeft = whichIt.offsetLeft;
whichIt.style.pixelTop = whichIt.offsetTop;
currentX = (event.clientX + document.body.scrollLeft);
currentY = (event.clientY + document.body.scrollTop);
} else {
window.captureEvents(Event.MOUSEMOVE);
if(checkFocus (e.pageX,e.pageY)) {
whichIt = document.floater;
StalkerTouchedX = e.pageX-document.floater.pageX;
StalkerTouchedY = e.pageY-document.floater.pageY;
} 		}
return true;
}
function moveIt(e) {
if (whichIt == null) { return true; }
if(IE) {
newX = (event.clientX + document.body.scrollLeft);
newY = (event.clientY + document.body.scrollTop);
distanceX = (newX - currentX);    distanceY = (newY - currentY);		    currentX = newX;    currentY = newY;
whichIt.style.pixelLeft += distanceX;		    whichIt.style.pixelTop += distanceY;
if(whichIt.style.pixelTop < document.body.scrollTop) whichIt.style.pixelTop = document.body.scrollTop;			if(whichIt.style.pixelLeft < document.body.scrollLeft) whichIt.style.pixelLeft = document.body.scrollLeft;
if(whichIt.style.pixelLeft > document.body.offsetWidth - document.body.scrollLeft - whichIt.style.pixelWidth - 20) whichIt.style.pixelLeft = document.body.offsetWidth - whichIt.style.pixelWidth - 20;
if(whichIt.style.pixelTop > document.body.offsetHeight + document.body.scrollTop - whichIt.style.pixelHeight - 5) whichIt.style.pixelTop = document.body.offsetHeight + document.body.scrollTop - whichIt.style.pixelHeight - 5;
event.returnValue = false;
} else {
whichIt.moveTo(e.pageX-StalkerTouchedX,e.pageY-StalkerTouchedY);
if(whichIt.left < 0+self.pageXOffset) whichIt.left = 0+self.pageXOffset;
if(whichIt.top < 0+self.pageYOffset) whichIt.top = 0+self.pageYOffset;
if( (whichIt.left + whichIt.clip.width) >= (window.innerWidth+self.pageXOffset-17)) whichIt.left = ((window.innerWidth+self.pageXOffset)-whichIt.clip.width)-17;
if( (whichIt.top + whichIt.clip.height) >= (window.innerHeight+self.pageYOffset-17)) whichIt.top = ((window.innerHeight+self.pageYOffset)-whichIt.clip.height)-17;
return false;
}
return false;
}
function dropIt() {
whichIt = null;
if(NS) window.releaseEvents (Event.MOUSEMOVE);
return true;
}

if(NS) {
window.captureEvents(Event.MOUSEUP|Event.MOUSEDOWN);
window.onmousedown = grabIt;
window.onmousemove = moveIt;
window.onmouseup = dropIt;
}
if(IE) {
document.onmousedown = grabIt;
document.onmousemove = moveIt;
document.onmouseup = dropIt;
}
if(NS || IE) action = window.setInterval("heartBeat()",1);
document.write('<div ID="floater" align="center"><table border="0" width="100" cellspacing="0" cellpadding="0" ><tr><td height="30" background="/UploadFiles/demo/ss_1.gif" width="100%" bgcolor="#DDF3FF" valign="middle"><div  style="margin:2px"><form name="search1" onSubmit="return findInPage(this.string1.value);"><input style="font-size:12px" name="string1" type="text" size="13" value="您要找的歌名" onChange="n=0;" onFocus="window.document.search1.string1.value=\'\'" class="ourfont"><br><input alt="页内查找" border="0" src="/UploadFiles/demo/ss_2.gif" type="image" name="搜索"></form></div></td></tr></table></div>');
</script>
这个是进行当前页面内容进行搜索,效果非常不错

前一页:利用javascript静态改变表单指向与提交方式

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