var Images={basePath:'',preload:function(src){body=document.getElementsByTagName('body');if(body.length==1){img=createImage(src);img.className='hidden';body[0].appendChild(img);}},remove:function(delete_btn,post_url,field_name){new Dialog(PHPVars.get('file_delete_confirm'),[{label:PHPVars.get('yes'),callback:function(){var req=new AJAX.Request(post_url,{method:'POST',json:true,parameters:['fieldName='+field_name],onComplete:function(response){if(response.responseJSON.result)File.replacePreview(delete_btn.parentNode,field_name);}});this.close();}},{label:PHPVars.get('no'),callback:'close'}]);},preview:function(url){var close=function(){DOM.removeEvent(document.body,'click',close);DOM.disappear($('imgPrev'),30,DOM.remove);};if(imgPrev=$('imgPrev')){imgPrev.innerHTML='';}else{imgPrev=DOM.create('div',{className:'imagePreview',id:'imgPrev'});}imgPrev.style.top=(Browser.posTop()+((Browser.pageHeight()-55)/2)+"px");imgPrev.style.left=(((Browser.pageWidth()-60)/2)+"px");var img=DOM.create('img');DOM.hide(img);DOM.addEvent(img,'load',(function(){if(this.height>600)this.height=600;DOM.appear(img,30);this.style.cursor='pointer';DOM.addEvent(document.body,'click',close);DOM.setPosition($('imgPrev'),((Browser.pageWidth()-$('imgPrev').offsetWidth)/2),(Browser.posTop()+((Browser.pageHeight()-$('imgPrev').offsetHeight)/2)));}).bind(img));img.src=url;imgPrev.appendChild(img);document.getElementsByTagName('body')[0].appendChild(imgPrev);},initializeButtons:function(){var imgs=document.getElementsByTagName('img');if(imgs.length>0){for(img=0;img<imgs.length;img++){var className=imgs[img].className.split(' ');for(cid=0;cid<className.length;cid++){if(className[cid].substring(0,5)=='over:'){var file=className[cid].substring(5);imgs[img].src=Images.basePath+file+"_off.gif";imgs[img].setAttribute('border','0');imgs[img].removeAttribute('class');Images.assignChangeEvents(imgs[img],['mouseover','mouseout']);}}}}},changes:{'_on':'_off','_off':'_on','_1':'_0','_0':'_1','minus':'plus','plus':'minus'},change:function(){var oldSrc=this.src,replacement;for(var match in Images.changes){if(oldSrc.indexOf(match)!=-1){replacement=Images.changes[match];this.src=oldSrc.replace(match,replacement);return;}}},_changeListener:function(event){Images.change.apply(DOM.eventTarget(event));},assignChangeEvents:function(image,events){for(var i=0;i<events.length;i++){DOM.addEvent(image,events[i],Images._changeListener);}},replacePNGs:function(element){if(!Browser.isIE()){return false;}if(typeof(element)=='undefined'){element=document;}var imgs=element.getElementsByTagName('img');for(imgId=0;imgId<imgs.length;imgId++){if(imgs[imgId].src.substring(imgs[imgId].src.length-4)=='.png'){w=imgs[imgId].offsetWidth;h=imgs[imgId].offsetHeight;imgs[imgId].style.filter="progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+imgs[imgId].src+"',sizingMethod='scale');";imgs[imgId].src=Request.get('basepath')+'/images/pix.gif';imgs[imgId].style.width=w+'px';imgs[imgId].style.height=h+'px';}}}}