function hasClass(element,className){return element.className.match('\\b'+className+'\\b');}
function addClass(element,className){if(!element.className.match('/\\b'+className+'\\b/'))
element.className+=' '+className;}
function removeClass(element,className){element.className=element.className.replace(new RegExp('\\b'+className+'\\b','g'),'');}
function getElementsByCondition(condition,container){container=container||document
var all=container.all||container.getElementsByTagName('*')
var arr=[]
for(var k=0;k<all.length;k++){var elm=all[k]
if(condition(elm,k)){arr[arr.length]=elm}}
return arr}
function newImage(arg){if(document.images){rslt=new Image();rslt.src=arg;return rslt;}}
function changeImages(){if(document.images&&(preloadFlag==true)){for(var i=0;i<changeImages.arguments.length;i+=2){document[changeImages.arguments[i]].src=changeImages.arguments[i+1];}}}
var preloadFlag=false;function preloadImages(){if(document.images){voltijd_ondernemer_over=newImage("tmpl/homepage/images/voltijd-ondernemer_over.jpg");ondernemer_voltijd_over=newImage("tmpl/homepage/images/ondernemer-voltijd_over.jpg");zorg_voltijd_over=newImage("tmpl/homepage/images/zorg-voltijd_over.jpg");deeltijd_voltijd_over=newImage("tmpl/homepage/images/deeltijd-voltijd_over.jpg");preloadFlag=true;}}