dw_scrollObj.prototype.bSizeDragBar=true;dw_scrollObj.prototype.setUpScrollbar=function(id,trkId,axis,offx,offy){if(!document.getElementById)return;var bar=document.getElementById(id);var trk=document.getElementById(trkId);dw_slidebar.init(bar,trk,axis,offx,offy);
bar.wn=dw_scrollObjs[this.id];if(axis=="v")this.vBarId=id;else this.hBarId=id;if(this.bSizeDragBar)this.setBarSize();bar.on_drag_start=bar.on_slide_start=dw_scrollObj.getWndoLyrRef;bar.on_drag_end=bar.on_slide_end=dw_scrollObj.tossWndoLyrRef;bar.on_drag=bar.on_slide=dw_scrollObj.UpdateWndoLyrPos;};
dw_scrollObj.getWndoLyrRef=function(){this.wnLyr=document.getElementById(this.wn.lyrId);};dw_scrollObj.tossWndoLyrRef=function(){this.wnLyr=null;};dw_scrollObj.UpdateWndoLyrPos=function(x,y){var nx,ny;if(this.axis=="v"){nx=this.wn.x;
ny=-(y-this.minY)*(this.wn.maxY/(this.maxY-this.minY))||0;}else{ny=this.wn.y;nx=-(x-this.minX)*(this.wn.maxX/(this.maxX-this.minX))||0;};this.wn.shiftTo(this.wnLyr,nx,ny);};dw_scrollObj.prototype.updateScrollbar=function(x,y){var nx,ny;if(this.vBarId){if(!this.maxY)return;ny=-(y*((this.vbar.maxY-this.vbar.minY)/this.maxY)-this.vbar.minY);ny=Math.min(Math.max(ny,this.vbar.minY),this.vbar.maxY);nx=parseInt(this.vbar.style.left);this.vbar.style.left=nx+"px";this.vbar.style.top=ny+"px";}if(this.hBarId){if(!this.maxX)return;nx=-(x*((this.hbar.maxX-this.hbar.minX)/this.maxX)-this.hbar.minX);nx=Math.min(Math.max(nx,this.hbar.minX),this.hbar.maxX);ny=parseInt(this.hbar.style.top);this.hbar.style.left=nx+"px";this.hbar.style.top=ny+"px";}};
dw_scrollObj.prototype.restoreScrollbars=function(){var bar;if(this.vBarId){bar=document.getElementById(this.vBarId);bar.style.left=bar.minX+"px";bar.style.top=bar.minY+"px";}if(this.hBarId){bar=document.getElementById(this.hBarId);bar.style.left=bar.minX+"px";bar.style.top=bar.minY+"px";}};
dw_scrollObj.prototype.setBarSize=function(){var bar;var lyr=document.getElementById(this.lyrId);var wn=document.getElementById(this.id);if(this.vBarId){bar=document.getElementById(this.vBarId);bar.style.height=(lyr.offsetHeight>wn.offsetHeight)?bar.trkHt/(lyr.offsetHeight/wn.offsetHeight)+"px":bar.trkHt-2*bar.minY+"px";bar.maxY=bar.trkHt-bar.offsetHeight-bar.minY;}if(this.hBarId){bar=document.getElementById(this.hBarId);bar.style.width=(this.wd>wn.offsetWidth)?bar.trkWd/(this.wd/wn.offsetWidth)+"px":bar.trkWd-2*bar.minX+"px";bar.maxX=bar.trkWd-bar.offsetWidth-bar.minX;}};
dw_scrollObj.prototype.on_load=function(){this.restoreScrollbars();if(this.bSizeDragBar)this.setBarSize();};dw_scrollObj.prototype.on_scroll=dw_scrollObj.prototype.on_slide=function(x,y){this.updateScrollbar(x,y);};dw_scrollObj.prototype.on_scroll_start=dw_scrollObj.prototype.on_slide_start=function(){if(this.vBarId)this.vbar=document.getElementById(this.vBarId);if(this.hBarId)this.hbar=document.getElementById(this.hBarId);};dw_scrollObj.prototype.on_scroll_end=dw_scrollObj.prototype.on_slide_end=function(x,y){this.updateScrollbar(x,y);this.lyr=null;this.bar=null;};