html5 - Long-running JavaScript Web -

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i making website contains html5 , javascript, website requires few user interactions (only @ start), after web display kind of informations (text, time, pictures, etc)

in website use timer (setinterval) @ specified intervals (3seconds or 20seconds), first 2 hours, runs fine, after that, crash browser or make hang, wonder if using setinterval idea

i clear interval (with clearinterval) if want change interval activate again. need web run days or weeks, if it's not hang, cause browser(not whole pc) run slow,

so idea use setinterval , clearinterval in long run? or should switch settimeout instead (or same)?

if cause memory leak, cause?

var element=document.getelementbyid("image1"); //it div element var image=new image();  image.src=url;  // url path specific image(blob or external source) image.onload=function(){ //basically element.style.backgroundimage = "url(" + url + ")"; element.style.width=image.width.tostring()+"px"; //set original size element.style.height=image.height.tostring()+"px";  //by end of function don't clear variable image image=null };

i found it! apparently not because of image , dom creation handle them correctly after closure, because after changing of dom element, attach event-handler object jquery ($(element).bind(eventhandler,thehandler);)

i thought when attach event bind, replace handler, apparently stack og handlers attached new one. now, once or unbind old 1 if necessary


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