/* 
	Author: AloeR@bbs.xjtu.edu.cn 
*/


/* 水平下拉菜单变换 */
/*begin****************************************************************/
window.onload = Fix_Menu;

function Fix_Menu(){
//	if (document.all && document.getElementById) {
	if(document.getElementById("AloeR_Menu")){
		var sfEls = document.getElementById("AloeR_Menu").getElementsByTagName("li");
		for (var i=0; i<sfEls.length; i++){
			sfEls[i].onmouseover=function(){
				this.className+=(this.className.length>0?   " ":   "")   +   "over";   
			}   
			sfEls[i].onMouseDown=function(){   
				this.className+=(this.className.length>0?   " ":   "")   +   "over";   
			}   
			sfEls[i].onMouseUp=function(){   
				this.className+=(this.className.length>0?   " ":   "")   +   "over";   
			} 
			sfEls[i].onmouseout=function(){   
				this.className=this.className.replace(new   RegExp("( ?|^)over\\b"), "");   
			}   
		}   
	}
}   
/*end****************************************************************/
    

/* 左侧菜单变换 */
/*begin****************************************************************/
/*       SwitchMenu(当前级别 ,一级        ,二级        )        *********/
function SwitchMenu(LevelNow,FirstNumber,SecondNumber){
	if(LevelNow == 1 ){
		if(document.getElementById("AloeR_left")){////切换展开
			if(document.getElementById("ul_"+FirstNumber)){
				var el = document.getElementById("ul_"+FirstNumber);
				var ar = document.getElementById("AloeR_left").getElementsByTagName("ul"); ////切换展开
				if(el.style.display != "block"){ 
					for (var i=0; i<ar.length; i++){////切换展开
						ar[i].style.display = "none"; ////切换展开
					}////切换展开
					el.style.display = "block";
				}
				else{
					el.style.display = "none";
				}
			}
		}////切换展开
	}
	if(LevelNow == 2 ){
		if(document.getElementById("ul_"+FirstNumber)){////切换展开
			if(document.getElementById("ul_"+FirstNumber+"_"+SecondNumber)){
				var el = document.getElementById("ul_"+FirstNumber+"_"+SecondNumber);
				var ar = document.getElementById("ul_"+FirstNumber).getElementsByTagName("ul"); ////切换展开
				var ar1 = document.getElementById("ul_"+FirstNumber).getElementsByTagName("li"); ////切换展开
				if(el.style.display != "block"){ 
					for (var i=0; i<ar.length; i++){////切换展开
						ar[i].style.display = "none"; ////切换展开
					}////切换展开
					el.style.display = "block";
					
					for (var j=0; j<ar1.length; j++){////切换展开
						var idStr=ar1[j].getAttribute('id');////切换展
						var inStr="li_"+FirstNumber+"_";////切换展
						
						if(idStr.indexOf(inStr) >= 0){////切换展
							inStr=idStr.replace("li","ul");////切换展
							if(document.getElementById(inStr)){////切换展
								ar1[j].className = "l_L1_sub"; ////切换展
							}////切换展
						}////切换展
					}////切换展开
					
					if(document.getElementById("li_"+FirstNumber+"_"+SecondNumber)){
						document.getElementById("li_"+FirstNumber+"_"+SecondNumber).className="l_L1_active";
					}
				}
				else{
					el.style.display = "none";

					if(document.getElementById("li_"+FirstNumber+"_"+SecondNumber)){
						document.getElementById("li_"+FirstNumber+"_"+SecondNumber).className="l_L1_sub";
					}
				}
			}
		}////切换展开
	}
}
/*end****************************************************************/






/* 同时切换标签和内容 */
/*begin****************************************************************/

/*       switchTagShow(当前标签号)     **************/
function switchTagShow(thisTagId)
{
	if(document.getElementById("show_a_tag")){///父级标签ID
		var ar = document.getElementById("show_a_tag").getElementsByTagName("a");///操作标签类型
		for (var i=0; i<ar.length; i++){
			ar[i].className="show";///默认类别
		}
		if(document.getElementById("a_"+thisTagId)){///当前标签ID
			var el = document.getElementById("a_"+thisTagId);
			el.className="show_at";///切换类别
		}
	}
	
	if(document.getElementById("show_ul_tag")){///父级标签ID
		var ar1 = document.getElementById("show_ul_tag").getElementsByTagName("ul"); ///操作标签类型
		for (var i=0; i<ar1.length; i++){
			ar1[i].style.display = "none";///默认显示状态
		}
		if(document.getElementById("ul_"+thisTagId)){
		var el1 = document.getElementById("ul_"+thisTagId);
		el1.style.display = "block";///切换显示状态
		}
	}
}

/*end****************************************************************/



/* 显示标签 */
/*begin****************************************************************/

/*       showTag(父标签 ,标签类别 ,显示标签  )              **************/
function showTag(pTagId,tagClass,thisTagId)
{
	if(document.getElementById(pTagId)){
		var el = document.getElementById(thisTagId);
		var ar = document.getElementById(pTagId).getElementsByTagName(tagClass); ////切换展开
		for (var i=0; i<ar.length; i++){////切换展开
			ar[i].style.display = "none"; ////切换展开
		}////切换展开
		el.style.display = "block";
	
	}
}

/*end****************************************************************/



/* 切换标签 */
/*begin****************************************************************/
/*       changeTagClass(父标签 ,标签类别 ,切换标签  )              **************/
function changeTagClass(pTagId,tagClass,thisTagId){	
	if(document.getElementById(pTagId)){
		var el = document.getElementById(thisTagId);
		var ar = document.getElementById(pTagId).getElementsByTagName(tagClass); ////切换展开
		for (var i=0; i<ar.length; i++){////切换展开
			ar[i].className = "i_title"; ////切换展开
		}////切换展开
		el.className = "boldw";
	}
}
/*end****************************************************************/


/* 显示标签 */
/*begin****************************************************************/
function gotocl(cl)
{
  document.getElementById("zytz_1").className="i_title";
  document.getElementById("xxkx_1").className="i_title";
  document.getElementById("wlyx_1").className="i_title";
  document.getElementById("bdxx_1").className="i_title";
  document.getElementById("win_1").className="i_title";
  document.getElementById(cl+"_1").className="boldw";

  document.getElementById("zytz").style.display = "none";
  document.getElementById("xxkx").style.display = "none";
  document.getElementById("wlyx").style.display = "none";
  document.getElementById("bdxx").style.display = "none";
  document.getElementById("win").style.display = "none";
  document.getElementById("all").style.display = "none";
  document.getElementById(cl).style.display = "block";
}
/*end****************************************************************/


/* 随机漂浮广告 */
/*begin****************************************************************/
function addEvent(obj,evtType,func,cap){
    cap=cap||false;
	if(obj.addEventListener){
    	obj.addEventListener(evtType,func,cap);
		return true;
	}else if(obj.attachEvent){
    	if(cap){
        	obj.setCapture();
			return true;
	    }else{
			return obj.attachEvent("on" + evtType,func);
		}
	}else{
		return false;
    }
}

function getPageScroll(){
	var xScroll,yScroll;
	if (self.pageXOffset) {
		xScroll = self.pageXOffset;
	} else if (document.documentElement && document.documentElement.scrollLeft){
		xScroll = document.documentElement.scrollLeft;
	} else if (document.body) {
		xScroll = document.body.scrollLeft;
	}
	
	if (self.pageYOffset) {
		yScroll = self.pageYOffset;
	} else if (document.documentElement && document.documentElement.scrollTop){
		yScroll = document.documentElement.scrollTop;
	} else if (document.body) {
		yScroll = document.body.scrollTop;
	}
	arrayPageScroll = new Array(xScroll,yScroll);
	return arrayPageScroll;
}

function GetPageSize(){
	var xScroll, yScroll;
    if (window.innerHeight && window.scrollMaxY) { 
    	xScroll = document.body.scrollWidth;
    	yScroll = window.innerHeight + window.scrollMaxY;
    } else if (document.body.scrollHeight > document.body.offsetHeight){
        xScroll = document.body.scrollWidth;
        yScroll = document.body.scrollHeight;
    } else {
        xScroll = document.body.offsetWidth;
        yScroll = document.body.offsetHeight;
    }
    var windowWidth, windowHeight;
    if (self.innerHeight) {
        windowWidth = self.innerWidth;
        windowHeight = self.innerHeight;
    } else if (document.documentElement && document.documentElement.clientHeight) {
        windowWidth = document.documentElement.clientWidth;
        windowHeight = document.documentElement.clientHeight;
    } else if (document.body) {
        windowWidth = document.body.clientWidth;
        windowHeight = document.body.clientHeight;
    } 
    if(yScroll < windowHeight){
        pageHeight = windowHeight;
    } else { 
        pageHeight = yScroll;
    }
    if(xScroll < windowWidth){ 
        pageWidth = windowWidth;
    } else {
        pageWidth = xScroll;
    }
    arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) 
    return arrayPageSize;
}
////////////////////////////////////////////////////////
/*
例子
<div id="Div2">
    ***** content ******
</div>
var ad=new AdMove("Div2");
ad.Run();
*/
var AdMoveConfig=new Object();
AdMoveConfig.IsInitialized=false;
AdMoveConfig.ScrollX=0;
AdMoveConfig.ScrollY=0;
AdMoveConfig.MoveWidth=0;
AdMoveConfig.MoveHeight=0;
AdMoveConfig.Resize=function(){
    var winsize=GetPageSize();
    AdMoveConfig.MoveWidth=winsize[2];
    AdMoveConfig.MoveHeight=winsize[3];
    AdMoveConfig.Scroll();
}
AdMoveConfig.Scroll=function(){
    var winscroll=getPageScroll();
    AdMoveConfig.ScrollX=winscroll[0];
    AdMoveConfig.ScrollY=winscroll[1];
}
addEvent(window,"resize",AdMoveConfig.Resize);
addEvent(window,"scroll",AdMoveConfig.Scroll);
function AdMove(id){
    if(!AdMoveConfig.IsInitialized){
        AdMoveConfig.Resize();
        AdMoveConfig.IsInitialized=true;
    }
    var obj=document.getElementById(id);
    obj.style.position="absolute";
    var W=AdMoveConfig.MoveWidth-obj.offsetWidth;
    var H=AdMoveConfig.MoveHeight-obj.offsetHeight;
    var x = W*Math.random(),y = H*Math.random();
    var rad=(Math.random()+1)*Math.PI/6;
    var kx=Math.sin(rad),ky=Math.cos(rad);
    var dirx = (Math.random()<0.5?1:-1), diry = (Math.random()<0.5?1:-1);
    var step = 1;
    var interval;
    this.SetLocation=function(vx,vy){x=vx;y=vy;}
    this.SetDirection=function(vx,vy){dirx=vx;diry=vy;}
    obj.CustomMethod=function(){
        obj.style.left = (x + AdMoveConfig.ScrollX) + "px";
        obj.style.top = (y + AdMoveConfig.ScrollY) + "px";
        rad=(Math.random()+1)*Math.PI/6;
        W=AdMoveConfig.MoveWidth-obj.offsetWidth;
        H=AdMoveConfig.MoveHeight-obj.offsetHeight;
        x = x + step*kx*dirx;
        if (x < 0){dirx = 1;x = 0;kx=Math.sin(rad);ky=Math.cos(rad);} 
        if (x > W){dirx = -1;x = W;kx=Math.sin(rad);ky=Math.cos(rad);}
        y = y + step*ky*diry;
        if (y < 0){diry = 1;y = 0;kx=Math.sin(rad);ky=Math.cos(rad);} 
        if (y > H){diry = -1;y = H;kx=Math.sin(rad);ky=Math.cos(rad);}
    }
    this.Run=function(){
        var delay = 10;
        interval=setInterval(obj.CustomMethod,delay);
        obj.onmouseover=function(){clearInterval(interval);}
        obj.onmouseout=function(){interval=setInterval(obj.CustomMethod, delay);}
    }
}
/*end****************************************************************/


/* 隐藏div内容 */
/*begin****************************************************************/

function hideDiv(divName){
	document.getElementById(divName).style.display = "none";
}

/*end****************************************************************/