function gettrailobj(){
    if (document.getElementById) return document.getElementById("previewdiv").style
    else if (document.all) return document.all.previewdiv.style
}//function gettrailobj()

function truebody(){
    return (!window.opera && document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}//function truebody(){

function hidetrail(){
    document.onmousemove=""
    document.getElementById('loadingimg').src='../images/loading.gif'
    gettrailobj().visibility="hidden"
    gettrailobj().left=-1000
    gettrailobj().top=0
}//function hidetrail(){

function showtrail(width,height,file){
    if(navigator.userAgent.toLowerCase().indexOf('opera') == -1 && navigator.userAgent.toLowerCase().indexOf('safari') == -1){
        w=width
        h=height
        gettrailobj().visibility="visible"
        gettrailobj().width=w+"px"
        gettrailobj().height=h+"px"
        document.getElementById('loadingimg').src=file
		document.getElementById('loadingimg').style.width=w+"px"
		document.getElementById('loadingimg').style.height=h+"px" 
        document.onmousemove=followmouse
    }//if(navigator.userAgent.toLowerCase().indexOf('opera') == -1 && navigator.userAgent.toLowerCase().indexOf('safari') == -1){
}//function showtrail(width,height,file){


function followmouse(e){
    if(navigator.userAgent.toLowerCase().indexOf('opera') == -1 && navigator.userAgent.toLowerCase().indexOf('safari') == -1){
        var xcoord=20
        var ycoord=20
        if (typeof e != "undefined"){
            xcoord+=e.pageX
            ycoord+=e.pageY
        }//if (typeof e != "undefined"){
        else if (typeof window.event !="undefined"){
            xcoord+=truebody().scrollLeft+event.clientX
            ycoord+=truebody().scrollTop+event.clientY
        }//else if (typeof window.event !="undefined"){
        var docwidth=document.all? truebody().scrollLeft+truebody().clientWidth : pageXOffset+window.innerWidth-15
        var docheight=document.all? Math.max(truebody().scrollHeight, truebody().clientHeight) : Math.max(document.body.offsetHeight, window.innerHeight)
        if (xcoord+w+3>docwidth)xcoord=xcoord-w-(20*2)
        ycoord=ycoord - h/2;
        if (ycoord-truebody().scrollTop+h>truebody().clientHeight)ycoord=ycoord-h-20;
        gettrailobj().left=xcoord+"px"
        gettrailobj().top=ycoord+"px"
    }//if(navigator.userAgent.toLowerCase().indexOf('opera') == -1 && navigator.userAgent.toLowerCase().indexOf('safari') == -1){
}//function followmouse(e){