function getPosition(anchorname) {
// This function will return an Object with x and y properties
var useWindow=false;
var coordinates=new Object();
var x=0,y=0;
// Browser capability sniffing
var use_gebi=false, use_css=false, use_layers=false;
if (document.getElementById) { use_gebi=true; }
else if (document.all) { use_css=true; }
else if (document.layers) { use_layers=true; }
// Logic to find position
if (use_gebi && document.all) {
x=getPositionPageOffsetLeft(document.all[anchorname]);
y=getPositionPageOffsetTop(document.all[anchorname]);
}
else if (use_gebi) {
var o=document.getElementById(anchorname);
x=getPositionPageOffsetLeft(o);
y=getPositionPageOffsetTop(o);
}
else if (use_css) {
x=getPositionPageOffsetLeft(document.all[anchorname]);
y=getPositionPageOffsetTop(document.all[anchorname]);
}
else if (use_layers)
{
var found=0;
for (var i=0; i < document.anchors.length; i++)
{
if (document.anchors[i].name==anchorname) { found=1; break; }
}
if (found==0)
{
coordinates.x=0; coordinates.y=0; return coordinates;
}
x=document.anchors[i].x;
y=document.anchors[i].y;
}
else
{
coordinates.x=0; coordinates.y=0; return coordinates;
}
coordinates.x=x;
coordinates.y=y;
return coordinates;
}

// Functions for IE to get position of an object
function getPositionPageOffsetLeft (el)
{
var ol=el.offsetLeft;
while ((el=el.offsetParent) != null) { ol += el.offsetLeft; }
return ol;
}

function getPositionWindowOffsetLeft (el)
{
return getPositionPageOffsetLeft(el)-document.body.scrollLeft;
}
function getPositionPageOffsetTop (el)
{
var ot=el.offsetTop;
while((el=el.offsetParent) != null) { ot += el.offsetTop; }
return ot;
}

function getPositionWindowOffsetTop (el)
{
return getPositionPageOffsetTop(el)-document.body.scrollTop;
}