php - javascript triggers "onmouseover" and "onmouseout" when i hover the div in another div -

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i working on grid layout new website. php code: 

echo"<div class='model_container_invisible' onmouseover='fade(this, 0)' onmouseout='fade(this, 1)'>";             echo"<span class='model_title_wrapper'>";                 echo"<span class='model_title'>ancient dragon</span>";                 echo"<span class='model_designer'>designed kamiya satoshi</span>";             echo"</span>";             echo"<img class='model_img' src='img/models/001.jpg' />"; echo"</div>";

this on grid element. opacity of image 0.5, want change when hover element js function fade(). here code:

function fade(elem, direction) { /* if(elem.classname == "model_container_invisible")     elem.classname = "model_container_visible"; else     elem.classname = "model_container_invisible"; */  var img = elem.getelementsbytagname("img")[0]; //das bild  if(direction == 0) //einblenden {     alert("fadein, this: "+elem);     img.style.opacity = 0.5;      var aktiv = window.setinterval(function() {         img.style.opacity = string(number(img.style.opacity) + .05);         if(number(img.style.opacity) >= 1.0) {             window.clearinterval(aktiv);              }     }, 8); } else //ausblenden {     alert("fadeout, this: "+elem);     img.style.opacity = 1;      var aktiv = window.setinterval(function() {         img.style.opacity = string(number(img.style.opacity) - .05);         if(number(img.style.opacity) <= 0.5) {             window.clearinterval(aktiv);              }     }, 16); } }

but when mouse pointer moves on div div (lets model_title_wrapper model_titel), function called again. dont it!

can please me? thanks!

use onmouseenter instead of onmouseover later fire event when hovering in child elements, while onmouseenter not (the event not bubble up).

see info onmouseenter/onmouseleave events should use:

http://www.quirksmode.org/js/events_mouse.html#mouseenter


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