var maxWidth=250;
var maxHeight=250;
var url=location.href;
var urlStrSearch;
var arrUrl=url.split('/');
if(arrUrl.length>1)
{
    if(arrUrl[arrUrl.length-1]!="")
    {
        urlStrSearch=arrUrl[arrUrl.length-1];
    }
    else if(arrUrl[arrUrl.length-2]!="")
    {
        urlStrSearch=arrUrl[arrUrl.length-2];
    }
}
function turnUrl()
{
    var keyWords=document.getElementById("searchKeyWords").value;
    keyWords=keyWords.replace(/(^\s*)|(\s*$)/g,"");
    var oUrl=document.getElementById("aSearch");
    var newUrl=url.replace(urlStrSearch,keyWords);
    oUrl.href=newUrl;
}
function getPosXY(a,offset)
{
	var p=offset?offset.slice(0):[0,0],tn;
	while(a)
	{
		tn=a.tagName.toUpperCase();
		if(tn=='IMG')
		{
			a=a.offsetParent;
			continue;
		}
		p[0]+=a.offsetLeft-(tn=="DIV"&&a.scrollLeft?a.scrollLeft:0);
		p[1]+=a.offsetTop-(tn=="DIV"&&a.scrollTop?a.scrollTop:0);
		if(tn=="BODY")
		break;
		a=a.offsetParent;
	}
	return p;
}

function checkComplete()
{
	if(checkComplete.__img&&checkComplete.__img.complete)
	checkComplete.__onload();
}
checkComplete.__onload=function(){
	clearInterval(checkComplete.__timeId);
	var w=checkComplete.__img.width;
	var h=checkComplete.__img.height;
	if(w>=h&&w>maxWidth)
	{
		previewImage.style.width=maxWidth+'px';
	}
	else if(h>=w&&h>maxHeight)
	{
		previewImage.style.height=maxHeight+'px';
	}
	else
	{
		previewImage.style.width=previewImage.style.height='';
	}
	previewImage.src=checkComplete.__img.src;previewUrl.href=checkComplete.href;checkComplete.__img=null;
}

function showPreview(e)
{
	hidePreview();
	//previewBox.style.display= "block";
	previewFrom=e.target||e.srcElement;
	previewImage.src=loadingImg;
	previewImage.style.width=previewImage.style.height='';
	previewTimeoutId=setTimeout('_showPreview()',500);
	checkComplete.__img=null;
}

function hidePreview(e)
{
	if(e)
	{
		var toElement=e.relatedTarget||e.toElement;
		while(toElement)
		{
			if(toElement.id=='PreviewBox')
			return;
			toElement=toElement.parentNode;
		}
	}
	try
	{
		clearInterval(checkComplete.__timeId);
		checkComplete.__img=null;
		previewImage.src=null;}
	catch(e){}
	clearTimeout(previewTimeoutId);
	previewBox.style.display='none';
}

function _showPreview()
{
	checkComplete.__img=new Image();
	if(previewFrom.tagName.toUpperCase()=='A')
		previewFrom=previewFrom.getElementsByTagName('img')[0];
		var largeSrc=previewFrom.getAttribute("large-src");
		var picLink=previewFrom.getAttribute("pic-link");
		if(!largeSrc)return;
		else
		{
			checkComplete.__img.src=largeSrc;
			checkComplete.href=picLink;
			checkComplete.__timeId=setInterval("checkComplete()",20);
			var pos;
			if(checkComplete.__img.width>maxWidth)
			{
				//pos=getPosXY(previewFrom,[-maxWidth,4]);
				pos=getPosXY(previewFrom,[maxWidth/2,4]);
			}
			else
			{
				pos=getPosXY(previewFrom,[-checkComplete.__img.width,4]);
			}
			previewBox.style.left=pos[0]+'px';
			previewBox.style.top=pos[1]+'px';
			previewBox.style.display='block';
		}
}
	var previewBox = document.getElementById('PreviewBox');
	var previewImage = document.getElementById('PreviewImage');
	var previewUrl = document.getElementById('previewUrl');
	var previewFrom = null;
	var previewTimeoutId = null;
	var loadingImg = '/images/loading.gif';