/* SCRIPT FOR DISPLAYING ZOOM VERSIONS OF BOOKMARK IMAGES */
/* For this to work, every zoom image must have exactly the same
filename as their normal-sized image with "_zoom" at the end,
and be placed in the same folder. */
/* initialise - gets image links adds event listeners for them */
function init(){
/*if functions not supported return (clicking on the image link will then just open the zoom image in the current window) */
if(!document.getElementById || !document.getElementsByTagName){
return;
}
/* get array of all links on the page */
arLinksAll=document.getElementsByTagName('a');
/* loop the links and for each one that has a class of 'zoomLink' add an event listener */
for(i=0; i < arLinksAll.length; i++){
if(arLinksAll[i].className=='zoomLink'){
addEvent(arLinksAll[i],'click',handle_zoomLink_click,false);}
}
}
/* handler for clicking on zoom image links */
function handle_zoomLink_click(e){
var zoomLink = getElmnt(e); //get the link that was clicked on
if(zoomLink=='none'){
return;}
/*some browsers pass the link text instead of the 'a' element,
so move up the DOM tree until the 'a' element is found, don't go past the 'body' container*/
while(zoomLink.nodeName.toLowerCase() != 'a' && zoomLink.nodeName.toLowerCase() != 'body'){
zoomLink=zoomLink.parentNode;
//prevent accidental infinite loop by returning if body tag reached
if(zoomLink.nodeName.toLowerCase() == 'body'){
return;}
}
/* CREATE OR FOCUS ZOOM WINDOW */
var winWidth=650;
var winHeight=550;
var leftPos=(screen.width-winWidth)/2;
var topPos=(screen.height-winHeight)/2;
var sOption="width="+winWidth+",height="+winHeight+",left="+leftPos+",top="+topPos+",menubar=no,";
sOption+="toolbar=no,location=no,status=no,scrollbars=no,resizable=yes";
//if window is already open, close it
if (window.zoomWin && !zoomWin.closed ){
zoomWin.close();}
//create window and write image in it
zoomWin=window.open('',"Zoom",sOption);
zoomWin.document.write('Zoom' +
'
');
zoomWin.focus();
cancelClick(e);
return false;
}
addEvent(window, 'load', init, false);