source: main/trunk/model-sites-dev/mozarts-laptop/collect/digital-music-stand/script/musicstand-util.js@ 30446

var orientation = "portrait";

var httpdocument = gs.xsltParams.library_name + "?a=d&ed=1&book=off&site="+gs.xsltParams.site_name+"&c="+gs.cgiParams["c"];


function getElement(elem_str)
{
  var elem;
  if (document.all) {
    elem = eval("document.all."+elem_str);
  }
  else if (document.getElementById) {
    elem = document.getElementById(elem_str);
  }
  else if (document.layers) {
    elem = eval("document."+elem_str);
  }

  return elem;
}


function setVisibility(id,val)
{
    if (document.layers) {
        if (val == 'hidden')  { val = 'hide' }
        if (val == 'visible') { val = 'show' }
    document.layers[id].visibility = val;
    }
    else if (document.all) {
    document.all[id].style.visibility = val;
    }
    else if (document.getElementById) {
    document.getElementById(id).style.visibility = val;
    }
}

function getVisibility(id)
{
    var val;

    if (document.layers) {
    val = document.layers[id].visibility;
        if (val == 'hide') { val = 'hidden' }
        if (val == 'show') { val = 'visible' }
    }
    else if (document.all) {
    val = document.all[id].style.visibility;
    }
    else if (document.getElementById) {
    val = document.getElementById(id).style.visibility;
    }
}

function makeVisible(id)
{
    setVisibility(id,'visible');
}

function makeInvisible(id)
{
    setVisibility(id,'hidden');
}

function toggleVisibility(id)
{
    var curr_vista = getVisibility(id);
    var new_vista = (curr_vista == 'hidden') ? 'visible' : 'hidden'
    setVisibility(id,new_vista);
}


function setDisplay(id,val)
{
    if (document.layers) {
    document.layers[id].display = val;
    }
    else if (document.all) {
    document.all[id].style.display = val;
    }
    else if (document.getElementById) {
    document.getElementById(id).style.display = val;
    }
}

function getDisplay(id)
{
    var val;

    if (document.layers) {
    val = document.layers[id].display;
    }
    else if (document.all) {
    val = document.all[id].style.display;
    }
    else if (document.getElementById) {
    val = document.getElementById(id).style.display;
    }
}

function displayBlock(id)
{
    setDisplay(id,'block');
}

function displayInline(id)
{
    setDisplay(id,'inline');
}

function displayNone(id)
{
    setDisplay(id,'none');
}

function toggleDisplay(id)
{
    var curr_vista = getDisplay(id);
    var new_vista = (curr_vista == 'block') ? 'none' : 'block'
    displayBlock(id,new_vista);
}



function getAbsoluteLeft(el) {
    xPos = el.offsetLeft;
    tempEl = el.offsetParent;
    while (tempEl != null) {
        xPos += tempEl.offsetLeft;
        tempEl = tempEl.offsetParent;
    }
    return xPos;
}

function getAbsoluteTop(el) {
    yPos = el.offsetTop;
    tempEl = el.offsetParent;
    while (tempEl != null) {
        yPos += tempEl.offsetTop;
        tempEl = tempEl.offsetParent;
    }
    return yPos;
}



function get_rect_xl(el)
{
  var xl;

  if (document.all) {
    xl = el.style.pixelLeft;
  }
  else if (document.getElementById) {
    xl = parseInt(el.style.left);
  }
  else if (document.layers) {
    xl = el.left;
  }
  
  return xl;
}

function get_rect_yt(el)
{
  var yt;

  if (document.all) {
    yt = el.style.pixelTop;
  }
  else if (document.getElementById) {
    yt = parseInt(el.style.top);
  }
  else if (document.layers) {
    yt = el.top;
  }
  
  return yt;
}

function getRectWidth(el)
{
  if (typeof(el) == "string") {
    el = getElement(el);
  }

  var width;

  if (document.all) {
    width = parseInt(el.style.width);
  }
  else if (document.getElementById) {
    width = parseInt(el.style.width);
  }
  else if (document.layers) {
    width = el.clip.width; 
  }

  return width;
}

function getRectHeight(el)
{
  if (typeof(el) == "string") {
    el = getElement(el);
  }


  var height;

  if (document.all) {
    height = parseInt(el.style.height);
  }
  else if (document.getElementById) {
    height = parseInt(el.style.height);
  }
  else if (document.layers) {
    height = el.clip.height; 
  }

  return height;
}

function get_rect_xr(el)
{
  var xr;
 
  xr = get_rect_xl(el) + get_rect_width(el) -1;

  return xr;
}

function get_rect_yb(el)
{
  var yb;
 
  yb = get_rect_yt(el) + get_rect_height(el) -1;

  return yb;
}


function set_rect_xl(el,xl)
{
  if (document.all) {
    el.style.pixelLeft = xl;
  }
  else if (document.getElementById) {
    el.style.left = xl + "px";
  }
  else if (document.layers) {
    el.left = xl + "px";
  }
}

function set_rect_yt(el,yt)
{
  if (document.all) {
    el.style.pixelTop = yt;
  }
  else if (document.getElementById) {
    el.style.top = yt + "px";
  }
  else if (document.layers) {
    el.top = yt + "px";
  }
}

function set_rect_width(el,width)
{
  if (document.all) {
    el.style.width = width;
  }
  else if (document.getElementById) {
    el.style.width = width;
  }
  else if (document.layers) {
    el.width = width;
  }
}

function set_rect_height(el,height)
{
  if (document.all) {
    el.style.height = height;
  }
  else if (document.getElementById) {
    el.style.height = height;
  }
  else if (document.layers) {
    el.height = height;
  }
}



function getMouseCoords(evt)
{
  var mouse = new Object();

  if (!evt) var evt = window.event;

  if (evt.pageX || evt.pageY) {
    mouse.x = evt.pageX;
    mouse.y = evt.pageY;
  }
  else if (evt.clientX || evt.clientY) {
    mouse.x = evt.clientX + document.body.scrollLeft + document.documentElement.scrollLeft;
    mouse.y = evt.clientY + document.body.scrollTop + document.documentElement.scrollTop;

  }

  return mouse;
}


function clip_to_rect(mouse, xl,yt,xr,yb) 
{
  if (mouse.x < xl) {
    mouse.x = xl; 
  }
  else if (mouse.x > xr) {
    mouse.x = xr; 
  }

  if (mouse.y < yt) {
    mouse.y = yt; 
  }
  else if (mouse.y > yb) {
    mouse.y = yb; 
  }
}

function draw_graphic(gr,x_org,y_org)
{
  if (document.all) {
    gr.style.pixelLeft = x_org;
    gr.style.pixelTop  = y_org;
    gr.style.visibility = 'visible';
  }
  else if (document.getElementById) {
    gr.style.left = x_org + 'px';
    gr.style.top  = y_org + 'px';
    gr.style.visibility = 'visible';
  }
  else if (document.layers) {
    gr.left = x_org;
    gr.top  = y_org;
    gr.visibility = 'show';
  }
}

function hide_graphic(gr)
{
  if (document.all) {
    gr.style.visibility = 'hidden';
  }
  else if (document.getElementById) {
    gr.style.visibility = 'hidden';
  }
  else if (document.layers) {
    gr.visibility = 'hide';
  }
}