/*
    intermediary functions to prevent errors before page loaded 
    when using html element event handler attributes
    Provided for backwards compatibility with updated dw_scroll.js 
*/
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_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_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];}
}


dw_scrollObj.loadLayer = function(wndoId, lyrId, horizId) {
    if ( dw_scrollObj.col[wndoId] ) dw_scrollObj.col[wndoId].load(lyrId, horizId);
}

// Support for mouseover/down scrolling at any angle has been removed 
dw_scrollObj.initScroll = function(wndoId, dir, speed) {
    var deg = dir == 'up'? 90: dir == 'down'? 270: dir == 'left'? 180: dir == 'right'? 0: dir;
    if ( deg != null && dw_scrollObj.col[wndoId] ) {
        dw_scrollObj.col[wndoId].initScrollVals(deg, speed);
    }
}

dw_scrollObj.stopScroll = function(wndoId) {
    if ( dw_scrollObj.col[wndoId] ) dw_scrollObj.col[wndoId].ceaseScroll();
}

// increase speed onmousedown of scroll links (for mouseover scrolling)
dw_scrollObj.doubleSpeed = function(wndoId) {
    if ( dw_scrollObj.col[wndoId] ) dw_scrollObj.col[wndoId].speed *= 2;
}

dw_scrollObj.resetSpeed = function(wndoId) {
    if ( dw_scrollObj.col[wndoId] ) dw_scrollObj.col[wndoId].speed /= 2;
}

// for glide onclick scrolling 
dw_scrollObj.scrollBy = function(wndoId, x, y, dur) {
    if ( dw_scrollObj.col[wndoId] ) dw_scrollObj.col[wndoId].initScrollByVals(x, y, dur);
}

dw_scrollObj.scrollTo = function(wndoId, x, y, dur) {
    if ( dw_scrollObj.col[wndoId] ) dw_scrollObj.col[wndoId].initScrollToVals(x, y, dur);
}