// getAnchorPosition(anchorname)
//   This function returns an object having .x and .y properties which are the coordinates
//   of the named anchor, relative to the page.
function getAnchorPosition(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=AnchorPosition_getPageOffsetLeft(document.all[anchorname]);
                y=AnchorPosition_getPageOffsetTop(document.all[anchorname]);
                }
        else if (use_gebi) {
                var o=document.getElementById(anchorname);
                x=AnchorPosition_getPageOffsetLeft(o);
                y=AnchorPosition_getPageOffsetTop(o);
                }
         else if (use_css) {
                x=AnchorPosition_getPageOffsetLeft(document.all[anchorname]);
                y=AnchorPosition_getPageOffsetTop(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;
        }

// getAnchorWindowPosition(anchorname)
//   This function returns an object having .x and .y properties which are the coordinates
//   of the named anchor, relative to the window
function getAnchorWindowPosition(anchorname) {
        var coordinates=getAnchorPosition(anchorname);
        var x=0;
        var y=0;
        if (document.getElementById) {
                if (isNaN(window.screenX)) {
                        x=coordinates.x-document.body.scrollLeft+window.screenLeft;
                        y=coordinates.y-document.body.scrollTop+window.screenTop;
                        }
                else {
                        x=coordinates.x+window.screenX+(window.outerWidth-window.innerWidth)-window.pageXOffset;
                        y=coordinates.y+window.screenY+(window.outerHeight-24-window.innerHeight)-window.pageYOffset;
                        }
                }
        else if (document.all) {
                x=coordinates.x-document.body.scrollLeft+window.screenLeft;
                y=coordinates.y-document.body.scrollTop+window.screenTop;
                }
        else if (document.layers) {
                x=coordinates.x+window.screenX+(window.outerWidth-window.innerWidth)-window.pageXOffset;
                y=coordinates.y+window.screenY+(window.outerHeight-24-window.innerHeight)-window.pageYOffset;
                }
        coordinates.x=x;
        coordinates.y=y;
        return coordinates;
        }

// Functions for IE to get position of an object
function AnchorPosition_getPageOffsetLeft (el) {
        var ol=el.offsetLeft;
        while ((el=el.offsetParent) != null) { ol += el.offsetLeft; }
        return ol;
        }
function AnchorPosition_getWindowOffsetLeft (el) {
        return AnchorPosition_getPageOffsetLeft(el)-document.body.scrollLeft;
        }
function AnchorPosition_getPageOffsetTop (el) {
        var ot=el.offsetTop;
        while((el=el.offsetParent) != null) { ot += el.offsetTop; }
        return ot;
        }
function AnchorPosition_getWindowOffsetTop (el) {
        return AnchorPosition_getPageOffsetTop(el)-document.body.scrollTop;
        }