/***********************************************

* Image Thumbnail viewer- © Dynamic Drive (www.dynamicdrive.com)

* Last updated Sept 26th, 03'. This notice must stay intact for use

* Visit http://www.dynamicdrive.com/ for full source code

***********************************************/



var ie=document.all

var ns6=document.getElementById&&!document.all



function ietruebody(){

return (document.compatMode && document.compatMode!="BackCompat" && !window.opera)? document.documentElement : document.body

}



function enlarge(which, e, position, imgwidth, imgheight){

if (ie||ns6){

crossobj=document.getElementById? document.getElementById("showimage") : document.all.showimage

if (position=="center"){

pgyoffset=ns6? parseInt(pageYOffset) : parseInt(ietruebody().scrollTop)

horzpos=ns6? pageXOffset+window.innerWidth/2-imgwidth/2 : ietruebody().scrollLeft+ietruebody().clientWidth/2-imgwidth/2

vertpos=ns6? pgyoffset+window.innerHeight/2-imgheight/2 : pgyoffset+ietruebody().clientHeight/2-imgheight/2

if (window.opera && window.innerHeight) //compensate for Opera toolbar

vertpos=pgyoffset+window.innerHeight/2-imgheight/2

vertpos=Math.max(pgyoffset, vertpos)

}

else{

var horzpos=ns6? pageXOffset+e.clientX : ietruebody().scrollLeft+event.clientX

var vertpos=ns6? pageYOffset+e.clientY : ietruebody().scrollTop+event.clientY

//vertpos -= imgheight;

//horzpos -= imgwidth/2;

}

crossobj.style.left=horzpos-(imgheight*-0.2)+"px"

crossobj.style.top=vertpos-(imgwidth*0.1)+"px"



crossobj.innerHTML='<img src="'+which+'" width="'+imgwidth+'" height="'+imgheight+'" style="border:0">'

crossobj.style.visibility="visible"

return false

}

else //if NOT IE 4+ or NS 6+, simply display image in full browser window

return true

}



function closepreview(){

crossobj.style.visibility="hidden"

}



function drag_drop(e){

if (ie&&dragapproved){

crossobj.style.left=tempx+event.clientX-offsetx+"px"

crossobj.style.top=tempy+event.clientY-offsety+"px"

}

else if (ns6&&dragapproved){

crossobj.style.left=tempx+e.clientX-offsetx+"px"

crossobj.style.top=tempy+e.clientY-offsety+"px"

}

return false

}



function initializedrag(e){

if (ie&&event.srcElement.id=="dragbar"||ns6&&e.target.id=="dragbar"){

offsetx=ie? event.clientX : e.clientX

offsety=ie? event.clientY : e.clientY



tempx=parseInt(crossobj.style.left)

tempy=parseInt(crossobj.style.top)



dragapproved=true

document.onmousemove=drag_drop

}

}



document.onmousedown=initializedrag

document.onmouseup=new Function("dragapproved=false")