Map slider to move horizontally..thats all

I 'm working on an interactive map …the slider for Zoom has this code on it.

All i need to do is change the direction of the silder…its slides vertically …& i need it to slide horizontal …thats it. I changed the Y’s to x VALUES…but that just distorts the map…

help Kirupians!

thank you oh sooo much!
:book:

onClipEvent(load){
 scrollMin = _root.range._y-_root.range._height // minimum _y value possiible for scrollbar

 scrollMax = _root.range._y // maximum _y value possiible for scrollbar
 lowestScale = 75 // lowest desired scale of map in %
 highestScale = 150

 // highest desired scale of map in %
 _y = scrollMin + (scrollMax - scrollMin)/2 // sets starting position of scrollbar (currently half-way)
 

 scaleFactor = Math.pow(highestScale/lowestScale,1/(scrollMax-scrollMin)) // variable for SetScale
 function SetScale(){

  // calculates scale and sets it
  _root.scale = _root.map._xscale = _root.map._yscale = lowestScale * Math.pow(scaleFactor,(scrollMax-_y))

 }
 SetScale()

}
onClipEvent(mouseMove){

 if (dragging){
  _y = Math.min(Math.max(_parent._ymouse,scrollMin),scrollMax)
  SetScale()
  updateAfterEvent();

 }
}