java.js

一个很好的ASp.net论坛程序

<script language="JavaScript">        
	self.onError=null;        
	currentX = currentY = 0;          
	whichIt = null;           
        	lastScrollX = -120; lastScrollY = -105;        
	NS = (document.layers) ? 1 : 0;        
	IE = (document.all) ? 1: 0;        
	<!-- STALKER CODE -->        
	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;        
		}	        
	}	<!-- /STALKER CODE -->        
	<!-- DRAG DROP CODE -->        
	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 false; }        
		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;        
	}        
	<!-- DRAG DROP CODE -->        
	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);        
	</script>