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📄 menus1.js

📁 这个是j2eejava web 编程精要十五讲的全部源码。对学习java web编程的人来说是很能得的资料
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	} 
	else { 
		this.fullHeight = this.scrollHeight; 
		this.showIt(false); 
		this.moveTo = moveTo; 
	} 
} 
 
function popUp(menuName,e){ 
	if (NS4 && NSresized) startIt(); 
	if (!isLoaded) return; 
	linkEl = (NS4) ? e.target : event.srcElement; 
	if (clickStart) linkEl.onclick = popMenu; 
	if (!beingCreated && !areCreated) startIt(); 
	linkEl.menuName = (IE4) ? menuName : "document."+menuName;	 
	if (!clickStart) popMenu(e); 
} 
 
function popMenu(e){ 
	if (!isLoaded || !areCreated) return true; 
 
	eType = (NS4) ? e.type : event.type; 
	if (clickStart && eType != "click") return true; 
	hideAll(); 
 
	linkEl = (NS4) ? e.target : event.srcElement; 
	 
	currentMenu = eval(linkEl.menuName); 
	currentMenu.hasParent = false; 
	currentMenu.menuObj.treeParent.startChild = currentMenu; 
	 
	if (IE4) menuLocBod = document.body; 
	xPos = (currentMenu.menuLeft) ? currentMenu.menuLeft : (NS4) ? e.pageX : (event.clientX + menuLocBod.scrollLeft); 
	yPos = (currentMenu.menuTop) ? currentMenu.menuTop : (NS4) ? e.pageY : (event.clientY + menuLocBod.scrollTop); 
 
	currentMenu.moveTo(xPos,yPos); 
	currentMenu.keepInWindow() 
	currentMenu.isOn = true; 
	currentMenu.showIt(true); 
 
	return false; 
} 
 
function menuOver(e) { 
	this.isOn = true; 
	isOverMenu = true; 
	currentMenu = this; 
	if (this.hideTimer) clearTimeout(this.hideTimer); 
} 
 
function menuOut() { 
	if (IE4 && event.srcElement.contains(event.toElement)) return; 
	this.isOn = false; 
	isOverMenu = false; 
	status = ""; 
	if (!clickKill) allTimer = setTimeout("currentMenu.hideTree()",10);   
} 
 
function itemOver(){ 
	if (keepHilite) { 
		if (this.container.currentItem && this.container.currentItem != this) { 
			if (NS4) { 
				this.container.currentItem.bgColor = this.menuObj.menuBGColor; 
				if (NSfontOver) this.container.currentItem.txtLyr.dw(this.container.currentItem.htmStr); 
			} 
			else { 
				with (this.container.currentItem.style) { 
					backgroundColor = this.menuObj.menuBGColor; 
					color = this.menuObj.menuFontColor; 
				} 
			} 
		} 
	} 
 
	if (IE4) { 
		if (event.srcElement.tagName == "IMG") return; 
		this.style.backgroundColor = this.menuObj.menuBGOver; 
		this.style.color = this.menuObj.menuFontOver; 
	} 
	else { 
		this.bgColor = this.menuObj.menuBGOver; 
		if (NSfontOver)	this.txtLyr.dw(this.htmStrOver); 
	} 
 
	status = this.linkText; 
 
	this.container.currentItem = this; 
 
	if (this.container.hasChildVisible) { 
		this.container.hideChildren(this); 
	} 
 
	if (this.hasMore) { 
		horOffset = (this.menuObj.menuWidth - this.container.childOverlap); 
 
		if (NS4) { 
			this.childX = this.container.left + horOffset; 
			this.childY = this.pageY + childOffset; 
		} 
		else { 
			this.childX = this.container.style.pixelLeft + horOffset; 
			this.childY = this.offsetTop + this.container.style.pixelTop + childOffset; 
		} 
 
		this.child.moveTo(this.childX,this.childY); 
		this.child.keepInWindow(); 
		this.container.hasChildVisible = true; 
		this.container.visibleChild = this.child; 
		this.child.showIt(true); 
	} 
} 
 
function itemOut() { 
	if (IE4) { 
    	if (event.srcElement.contains(event.toElement) 
     || (event.fromElement.tagName=="IMG" && event.toElement.contains(event.fromElement))) 
        return; 
		if (!keepHilite) { 
			this.style.backgroundColor = this.menuObj.menuBGColor; 
			this.style.color = this.menuObj.menuFontColor; 
		} 
	} 
	else { 
		if (!keepHilite) { 
			this.bgColor = this.menuObj.menuBGColor; 
			if (NSfontOver) this.txtLyr.dw(this.htmStr); 
		} 
		if (!isOverMenu && !clickKill) { 
			allTimer = setTimeout("currentMenu.hideTree()",10);  
		} 
	} 
} 
 
function moveTo(xPos,yPos) { 
	this.style.pixelLeft = xPos; 
	this.style.pixelTop = yPos; 
} 
 
function showIt(on) { 
	if (NS4) { 
		this.visibility = (on) ? "show" : "hide"; 
		if (keepHilite && this.currentItem) { 
			this.currentItem.bgColor = this.menuBGColor; 
			if (NSfontOver) this.currentItem.txtLyr.dw(this.currentItem.htmStr); 
		} 
	} 
	else { 
		this.style.visibility = (on) ? "visible" : "hidden"; 
		if (keepHilite && this.currentItem) { 
			with (this.currentItem.style) { 
				backgroundColor = this.menuBGColor; 
				color = this.menuFontColor; 
			} 
		} 
	} 
	this.currentItem = null; 
} 
 
function keepInWindow() { 
	scrBars = 20; 
	botScrBar = scrBars; 
	rtScrBar = scrBars; 
	if (NS4) { 
		winRight = (pageXOffset + innerWidth) - rtScrBar; 
		rightPos = this.left + this.menuWidth; 
    
		if (rightPos > winRight) { 
			if (this.hasParent) { 
				parentLeft = this.parentMenu.left; 
				newLeft = ((parentLeft-this.menuWidth) + this.childOverlap); 
				this.left = newLeft; 
			} 
			else { 
				dif = rightPos - winRight; 
				this.left -= dif; 
			} 
		} 
 
		winBot = (pageYOffset + innerHeight) - botScrBar ; 
		botPos = this.top + this.fullHeight; 
 
		if (botPos > winBot) { 
			dif = botPos - winBot; 
			this.top -= dif; 
		} 
		 
		winLeft = pageXOffset; 
		leftPos = this.left; 
 
		if (leftPos < winLeft) { 
			if (this.hasParent) { 
				parentLeft = this.parentMenu.left; 
				newLeft = ((parentLeft+this.menuWidth) - this.childOverlap); 
				this.left = newLeft; 
			} 
			else { 
				this.left = 5; 
			} 
		} 
	} 
	else { 
    	winRight = (document.body.scrollLeft + document.body.clientWidth) - rtScrBar; 
		rightPos = this.style.pixelLeft + this.menuWidth; 
	 
		if (rightPos > winRight) { 
			if (this.hasParent) { 
				parentLeft = this.parentMenu.style.pixelLeft; 
				newLeft = ((parentLeft - this.menuWidth) + this.childOverlap); 
				this.style.pixelLeft = newLeft; 
			} 
			else { 
				dif = rightPos - winRight; 
				this.style.pixelLeft -= dif; 
			} 
		} 
 
		winBot = (document.body.scrollTop + document.body.clientHeight) - botScrBar; 
		botPos = this.style.pixelTop + this.fullHeight; 
 
		if (botPos > winBot) { 
			dif = botPos - winBot; 
			this.style.pixelTop -= dif; 
		} 
		 
		winLeft = document.body.scrollLeft; 
		leftPos = this.style.pixelLeft; 
 
		if (leftPos < winLeft) { 
			if (this.hasParent) { 
				parentLeft = this.parentMenu.style.pixelLeft; 
				newLeft = ((parentLeft+this.menuWidth) - this.childOverlap); 
				this.style.pixelLeft = newLeft; 
			} 
			else { 
				this.style.pixelLeft = 5; 
			} 
		} 
	} 
} 
 
function linkIt() { 
	if (this.linkText.indexOf("javascript")!=-1) eval(this.linkText) 
	else location.href = this.linkText; 
} 
 
function popDown(menuName){ 
	if (!isLoaded || !areCreated) return; 
	whichEl = eval(menuName); 
	whichEl.isOn = false; 
	if (!clickKill) whichEl.hideTop(); 
} 
 
function hideAll() { 
	for(i=1; i<topCount; i++) { 
		temp = eval("elMenu" + i + ".startChild"); 
		temp.isOn = false; 
		if (temp.hasChildVisible) temp.hideChildren(); 
		temp.showIt(false); 
	}	 
} 
 
function hideTree() {  
	allTimer = null; 
	if (isOverMenu) return; 
	if (this.hasChildVisible) { 
		this.hideChildren(); 
	} 
	this.hideParents(); 
} 
 
function hideTop() { 
	whichEl = this; 
	(clickKill) ? whichEl.hideSelf() : (this.hideTimer = setTimeout("whichEl.hideSelf()",mSecsVis)); 
} 
 
function hideSelf() { 
	this.hideTimer = null; 
	if (!this.isOn && !isOverMenu) {  
		this.showIt(false); 
	} 
} 
 
function hideParents() { 
	tempMenu = this; 
	while (tempMenu.hasParent) { 
		tempMenu.showIt(false); 
		tempMenu.parentMenu.isOn = false;		 
		tempMenu = tempMenu.parentMenu; 
	} 
	tempMenu.hideTop(); 
} 
 
function hideChildren(item) { 
	tempMenu = this.visibleChild; 
	while (tempMenu.hasChildVisible) { 
		tempMenu.visibleChild.showIt(false); 
		tempMenu.hasChildVisible = false; 
		tempMenu = tempMenu.visibleChild; 
	} 
 
	if (!this.isOn || !item.hasMore || this.visibleChild != this.child) { 
		this.visibleChild.showIt(false); 
		this.hasChildVisible = false; 
	} 
} 
 
function clicked() { 
	if (!isOverMenu && currentMenu!=null && !currentMenu.isOn) { 
		whichEl = currentMenu; 
		whichEl.hideTree(); 
	} 
} 
 
window.onerror = handleErr; 
 
function handleErr(){ 
	arAccessErrors = ["permission","access"]; 
	mess = arguments[0].toLowerCase(); 
	found = false; 
	for (i=0;i<arAccessErrors.length;i++) { 
		errStr = arAccessErrors[i]; 
		if (mess.indexOf(errStr)!=-1) found = true; 
	} 
	return found; 
} 
 
startIt(); 
 

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