function setStyleDisplay(id,status){document.getElementById(id).style.display=status;}
function setStyleBackgroundImage(id,imageURL){document.getElementById(id).style.backgroundImage="url('imageURL')";}
function setCookie(name,value,days){if(!days){days=365;}
var date=new Date();date.setTime(date.getTime()+(days*24*60*60*1000));var expires="; expires="+date.toGMTString();document.cookie=name+"="+value+expires+"; path=/";}
function goTop(acceleration,time){acceleration=acceleration||0.1;time=time||16;var dx=0;var dy=0;var bx=0;var by=0;var wx=0;var wy=0;if(document.documentElement){dx=document.documentElement.scrollLeft||0;dy=document.documentElement.scrollTop||0;}
if(document.body){bx=document.body.scrollLeft||0;by=document.body.scrollTop||0;}
var wx=window.scrollX||0;var wy=window.scrollY||0;var x=Math.max(wx,Math.max(bx,dx));var y=Math.max(wy,Math.max(by,dy));var speed=1+ acceleration;window.scrollTo(Math.floor(x/speed),Math.floor(y/speed));if(x>0||y>0){var invokeFunction="goTop("+ acceleration+", "+ time+")"
window.setTimeout(invokeFunction,time);}}
function switchImage(imageId,imageUrl,linkId,linkUrl,preview,title,alt){if(imageId&&imageUrl){var image=document.getElementById(imageId);image.src=imageUrl;if(title){image.title=title;}
if(alt){image.alt=alt;}}
if(linkId&&linkUrl){var link=document.getElementById(linkId);link.href=linkUrl;}}