// Helper Window
var helpurl,helpbox,helpX,helpY,defTop=-99;
var fincode="";
helpclicked=false;

document.onmousedown=helperDown;
document.onmouseup=helperUp;
document.onmousemove=helperDragMove;

function helper(url,post,fincod,ttl) { // Enable window; 04/30/07: supports POST
                                  // 07/25/07: fincod is script exec. at end
 if (document.getElementById('helperstart')) {
    el=document.getElementById('helperstart');
    if (ttl) {
        document.getElementById('helperttl').innerHTML=ttl;
        }
    if (defTop==-99) {
        defTop=parseInt(el.style.top);
        }
    helpurl=url;
    if (fincod)
        fincode=fincod;
    else
        fincode="";
    if (post) {
        helperXML(url,post);
        }
    else {
        helperXML(url,'');
        }
    }
 }
function helperclose() {
    el=document.getElementById('helperstart');
    el.style.visibility="hidden";
    }
function helperadj() { // Adj win size
    e1=document.getElementById('helpercell');
    e2=document.getElementById('helperstart');
    e3=document.getElementById('helpertext');
//  tp = document.getElementsByTagName('body')[0].scrollTop;
//  Note: if doctype specified in HTML, use below. Above no longer works.
    if (window.innerHeight) { // Moz
        tp=window.pageYOffset;
        }
    else if (document.documentElement && document.documentElement.scrollTop) {
        // IE
        tp=document.documentElement.scrollTop;
        }
    else if (document.body) tp=document.body.scrollTop;
    else    tp=0;
    e2.style.top=defTop+tp+'px';
    if (helphgt==-1) {
    hgt=window.innerHeight ? window.innerHeight : document.body.clientHeight;
        }
    else {
        hgt=helphgt;
        }
    elb=parseInt(e2.style.top)+e3.offsetHeight+30;
    if (elb-tp>hgt) {

        e1.style.overflow = 'auto';
        k=hgt+tp-parseInt(e2.style.top)-40;
        if (k<0) k=hgt;
        e1.style.height = k+'px';
        }
    else {
        e1.style.height = e3.offsetHeight+'px';
        }
    lft=parseInt(e2.style.left);
    if (lft<0) {
        wid=window.innerWidth ? window.innerWidth : document.body.clientWidth;
        e2.style.left=(wid-e2.offsetWidth-4+lft)+'px';
        }
    e2.style.visibility="visible";
    }
function helperprint() {
    if (helpurl.substr(0,1) != "/") {
        url=curpath+helpurl;
        }
    else {
        url=helpurl;
        }
    window.open('/backoffice/helperprint.htm?'+url,'',
            'width=640,height=480,scrollbars=1,resizable=1');
    }
function helperminmax(orig,loc) {
    el=document.getElementById('helperstart');
    im=document.getElementById('helperminmax');
    if (el.style.width==orig+'px') {
        el.style.width=(2*orig)+'px';
        im.src=loc+'buts_min.gif'
        wid=window.innerWidth?window.innerWidth:document.body.clientWidth;
        if (parseInt(el.style.width)+parseInt(el.style.left)>wid) {
            el.style.left=(wid-parseInt(el.style.width)-5)+'px';
            }
        }
    else {
        el.style.width=orig+'px';
        im.src=loc+'buts_max.gif'
        }
    }

function helperXML(url,post) {
    helpreq=false;
    try {
        helpreq = new XMLHttpRequest();
        }
    catch (trymicrosoft) {
        try {
            helpreq=new ActiveXObject("Msxml2.XMLHTTP");
            }
        catch (othermicrosoft) {
            try {
                helpreq=new ActiveXObject("Microsoft.XMLHTTP");
                }
            catch (failed) {
                helpreq=false;
                }
            }
        }
    if (helpreq) {
        helpreq.onreadystatechange = helpergo;
        if (post=='') {
            helpreq.open("GET",url);
            helpreq.send(null);
            }
        else {
            helpreq.open("POST",url);
            helpreq.send(post);
            }
        }
    }

function helpergo() {
    if (helpreq.readyState == 4 && helpreq.status == 200) {
        el=document.getElementById('helpertext');
        el.innerHTML=helpreq.responseText;
        helperadj();
        if (fincode !="") {
            eval(fincode);
            }
        }
    }

function helperEvt(evt) {
    evt = window.event ? window.event : evt;
    this.evt = evt;
//    this.source = evt.target ? evt.target : evt.srcElement;
    this.x = evt.pageX ? evt.pageX : evt.clientX;
    this.y = evt.pageY ? evt.pageY : evt.clientY;
    if (this.evt.stopPropagation) {
        this.evt.stopPropagation();
        this.evt.preventDefault();
        }
    else {
        this.evt.cancelBubble = true;
        this.evt.returnValue = false;
        }
    }

function helperDown(evt) {
    evt=evt||window.event;

    var clicktarget=evt.srcElement!=null ? evt.srcElement:evt.target;

    if ((evt.button==1 && window.event!=null || evt.button==0) && clicktarget.className=="helperdrag") {
        evt=new helperEvt(evt);

        helpbox=document.getElementById('helperstart');
        helpX = evt.x-parseInt(helpbox.style.left);
        helpY = evt.y-parseInt(helpbox.style.top);
        document.body.style.cursor='move';

        helpclicked=true;
        }
    }

function helperUp(evt) {
    helpclicked=false;
    document.body.style.cursor='auto';
    }

function helperDragMove(evt) {
    if (helpclicked) {
        evt = new helperEvt(evt);
        helpbox.style.left = (evt.x-helpX)+'px';
        helpbox.style.top = (evt.y-helpY)+'px';
        }
    }