var slideshow_width='680px' //가로크기
var slideshow_height='379px' //세로크기
var pause1=3500 //장면전환시간 

var fadeimages=new Array()
//    fadeimages	[0]="img/main/mainimg.jpg" 백청강
//	fadeimages	[0]="img/main/mainimg_2.jpg" 
//	fadeimages	[2]="img/main/mainimg_3.jpg" 백청강
//	fadeimages	[1]="img/main/main_bn20111020.jpg" 위인	
//	fadeimages	[0]="img/main/mainimg_jungsi.jpg"	
//	fadeimages	[2]="img/main/mainimg_whatsup.jpg"	왓츠업
//	fadeimages	[0]="img/main/mainimg_15th.jpg"	
	fadeimages	[0]="img/main/mainimg_skqqn.jpg"	
//	fadeimages	[3]="img/main/mainimg_photo.jpg"	
	fadeimages	[1]="img/main/mainimg_janghak.jpg"	
	

var fadeimagesurl=new Array()
//    fadeimagesurl[0]="http://www.100chungkang.ac.kr/" 백청강
//	fadeimagesurl[0]="http://www.100chungkang.ac.kr/"백청강
//	fadeimagesurl[2]="http://www.100chungkang.ac.kr/" 백청강
//	fadeimagesurl[1]="http://ck.ac.kr/tv/tv_photo.jsp?tvbid=ckvphoto&type=new" 위인
//	fadeimagesurl[0]="http://ipsi.ck.ac.kr/" 정시2
//	fadeimagesurl[2]="http://ck.ac.kr/article/cknotice/132278698080186" 왓츠업
//	fadeimagesurl[0]="http://player.afreeca.com/dusvlfepttod"
	fadeimagesurl[0]="http://ck4u.ck.ac.kr:7001/ck4u/jsp/tuit/objt/index.html"
//	fadeimagesurl[3]="http://ck.ac.kr/article/cknotice/132435383253065"
	fadeimagesurl[1]="http://www.kosaf.go.kr"

var preloadedimages=new Array()
    for (p=0;p<fadeimages.length;p++){
        preloadedimages[p]=new Image()
        preloadedimages[p].src=fadeimages[p]
}

var ie4=document.all
var dom=document.getElementById

if (ie4||dom)
		document.write('<div style="position:relative;width:'+slideshow_width+';height:'+slideshow_height+';overflow:hidden"><div  id="canvas0" style="position:absolute;width:'+slideshow_width+';height:'+slideshow_height+';top:0;left:0;filter:alpha(opacity=10);-moz-opacity:10"></div><div id="canvas1" style="position:absolute;width:'+slideshow_width+';height:'+slideshow_height+';top:0;left:0;filter:alpha(opacity=10);-moz-opacity:10;visibility: hidden"></div></div>')
    else
        document.write('<a href="'+ fadeimagesurl[0] +'" target="_new"><img name="defaultslide" src="'+fadeimages[0]+'" border=0></a>')

var curpos=10
var degree=10
var curcanvas="canvas0"
//var curimageindex=0
var curimageindex=Math.floor(Math.random()*(fadeimages.length))
//var nextimageindex=1
var nextimageindex=Math.floor(Math.random()*(fadeimages.length))


function fadepic(){
    if (curpos<100){
        curpos+=10
    if (tempobj.filters)
        tempobj.filters.alpha.opacity=curpos
    else if (tempobj.style.MozOpacity)
        tempobj.style.MozOpacity=curpos/101
    }
    else{
        clearInterval(dropslide)
        nextcanvas=(curcanvas=="canvas0")? "canvas0" : "canvas1"
        tempobj=ie4? eval("document.all."+nextcanvas) : document.getElementById(nextcanvas)
        tempobj.innerHTML='<a href="'+ fadeimagesurl[nextimageindex] +'"  target="_new"><img src="'+fadeimages[nextimageindex]+'"  border=0></a>'
        //nextimageindex=(nextimageindex<fadeimages.length-1)? nextimageindex+1 : 0
		 nextimageindex=Math.floor(Math.random()*(fadeimages.length))
        var tempobj2=ie4? eval("document.all."+nextcanvas) : document.getElementById(nextcanvas)
        tempobj2.style.visibility="hidden"
        setTimeout("rotateimage()",pause1)
    }
}

function rotateimage(){
    if (ie4||dom){
        resetit(curcanvas)
    var crossobj=tempobj=ie4? eval("document.all."+curcanvas) : document.getElementById(curcanvas)
        crossobj.style.zIndex++
        tempobj.style.visibility="visible"
    var temp='setInterval("fadepic()",50)'
        dropslide=eval(temp)
        curcanvas=(curcanvas=="canvas0")? "canvas1" : "canvas0"
    }
    else
        document.images.defaultslide.src=fadeimages[curimageindex]
        //curimageindex=(curimageindex<fadeimages.length-1)? curimageindex+1 : 0
	    curimageindex=Math.floor(Math.random()*(fadeimages.length))
}

function resetit(what){
    curpos=10
    var crossobj=ie4? eval("document.all."+what) : document.getElementById(what)
    if (crossobj.filters)
        crossobj.filters.alpha.opacity=curpos
    else if (crossobj.style.MozOpacity)
        crossobj.style.MozOpacity=curpos/101
}

function startit(){
    var crossobj=ie4? eval("document.all."+curcanvas) : document.getElementById(curcanvas)
        crossobj.innerHTML='<a href="'+ fadeimagesurl[curimageindex] +'"  target="_new"><img src="'+fadeimages[curimageindex]+'"  border=0></a>'
        rotateimage()
}

//if (ie4||dom)
//    window.onload=startit
//   else
//        setInterval("rotateimage()",pause)