var detect = navigator.userAgent;
var msie = checkIt('MSIE');
function checkIt(string) {
	place = detect.indexOf(string) + 1;
	thestring = string;
	return place;
}
var duration = 2;
var headerTrans = [
//"progid:DXImageTransform.Microsoft.GradientWipe(Duration=2)",
//"progid:DXImageTransform.Microsoft.GradientWipe(Duration=2,motion=reverse)",
"progid:DXImageTransform.Microsoft.GradientWipe(Duration="+duration+",WipeStyle=1)"//,
//"progid:DXImageTransform.Microsoft.GradientWipe(Duration=3,WipeStyle=1,motion=reverse)"
];
var NheaderTrans = headerTrans.length;

if (!msie) document.captureEvents(Event.CLICK)

function showpic (e, img, wsiz, hsiz, userid, imgid) {
	screenWidth = screen.width;
	if (msie) { // grab the x-y pos.s if browser is IE
		windowWidth = document.body.offsetWidth;
		windowHeight = document.body.offsetHeight;
		tempX = windowWidth/2 - 300
		tempY = event.clientY + document.body.scrollTop;
	} else {  // grab the x-y pos.s if browser is NS
		windowWidth = self.innerWidth;
		windowHeight = self.innerHeight;
		tempX = windowWidth/2 - 300
		tempY = e.pageY;
//	alert(tempX+","+tempY+","+wsiz+","+screenWidth+","+windowWidth);
	}
	var result = img.split("/");
	filename = result[result.length-1]
	src = "url("+ImagesRoot+userid+"/"+filename+")";
	src2 = ImagesRoot+userid+"/"+filename;
	blank = "url("+ImagesRoot+"/blank.gif)";
	oImg = document.getElementById("MainPic")
	oImg1 = document.getElementById("MainPic1")
	oPop = document.getElementById("popup")
	if (msie) {
		oImg.style.filter = "progid:DXImageTransform.Microsoft.Fade(Duration=2)";
	    oImg.filters[0].apply();
	 	oImg.src = src2;
		oImg.filters[0].play();
	} else {
//		oImg1.style.backgroundImage = "url("+oImg.src+")";
//alert (oImg1.style.backgroundImage);
//		changeOpac(0, "MainPic")
		oImg.src = src2;
//		opacity ("MainPic",0,100,2000);
	}
	oImg.style.width = wsiz; oImg.style.height = hsiz;
	oImg1.style.width = wsiz; oImg1.style.height = hsiz;
	oPop.style.left = tempX;
	popHeight = 600;
	topMargin = (windowHeight-popHeight)/2
	tempY = document.body.scrollTop + topMargin;
	if (tempY < 50) {tempY=50}
	oPop.style.top = tempY;
	document.getElementById("popupCaption").innerHTML = document.getElementById("thumbCaption"+imgid).innerHTML;
	changeobj('popup','visible',2);
}


function closepop () {
	changeobj('popup','hidden',2);
}

function changeobj(obj, status, dur) {
	docObj = document.getElementById(obj);
	if (msie) {
		docObj.style.filter = "progid:DXImageTransform.Microsoft.Fade(Duration="+dur+")";
		docObj.filters[0].apply();
		docObj.style.visibility = status;
		docObj.filters[0].play();
	} else {
		if (status == "hidden") {
			opacity(obj,100,0,dur*1000)
//			docObj.style.visibility = "hidden";
		}
		if (status == "visible") {
			changeOpac(0, obj);
			docObj.style.visibility = "visible";
			opacity(obj,0,100,dur*1000);
		}
	}
}

function opacity(id, opacStart, opacEnd, millisec) {
    //speed for each frame
    var speed = Math.round(millisec / 100);
    var timer = 0;

    //determine the direction for the blending, if start and end are the same nothing happens
    if(opacStart > opacEnd) {
        for(i = opacStart; i >= opacEnd; i--) {
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
            timer++;
        }
    } else if(opacStart < opacEnd) {
        for(i = opacStart; i <= opacEnd; i++)
            {
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
            timer++;
        }
    }
}

//change the opacity for different browsers
function changeOpac(opacity, id) {
    var object = document.getElementById(id).style;
    object.opacity = (opacity / 100);
    object.MozOpacity = (opacity / 100);
    object.KhtmlOpacity = (opacity / 100);
//    object.filter = "alpha(opacity=" + opacity + ")";
}


function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}