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怎样实现一个层飘过来,然后飘离叶面

时间: 2021-07-31 作者:daque

<script language="javascript1.2"> <!-- //1) specify path to image//图片的路途 var imagepath="http://www.51js.com/images/51js/newtopic.gif"//2) specify image dimensions//图片的巨细 var imagewidth=94var imageheight=30//3) change this to adjust speed (lower is slower)//速率 var speed=3; //4) configure what should happen when user clicks on image //a value of "dismiss" will dismiss it, while a url will cause the browser to navigate to it var imageclick="http://www.1stscript.com" //5) finally, configure when the image should automatically disappear, in seconds (0=perpetual) var hideafter=0 ////no editing required beyond this point///////////////// var isie=0; if(window.navigator.appname=="microsoft internet explorer"&&window.navigator.appversion.substring(window.navigator.appversion.indexof("msie")+5,window.navigator.appversion.indexof("msie")+8)>=5.5) { isie=1; } else { isie=0; } if(isie){ var preloadit=new image() preloadit.src=imagepath } function pop() { if(isie) { x=x+dx;y=y+dy; opopup.show(x, y, imagewidth, imageheight); if(x+imagewidth+5>screen.width) dx=-dx; if(y+imageheight+5>screen.height) dy=-dy; if(x<0) dx=-dx; if(y<0) dy=-dy; startani=settimeout("pop();",50); } } function dismisspopup(){ cleartimeout(startani) opopup.hide() } function dowhat(){ if (imageclick=="dismiss") dismisspopup() else window.open(imageclick);} if(isie) { var x=0,y=0,dx=speed,dy=speed; var opopup = window.createpopup(); var opopupbody = opopup.document.body; opopupbody.style.cursor="hand" opopupbody.innerhtml = '<img src="'+preloadit.src+'">'; opopup.document.body.onmouseover=new function("cleartimeout(startani)") opopup.document.body.onmouseout=pop opopup.document.body.onclick=dowhat pop(); if (hideafter>0) settimeout("dismisspopup()",hideafter*1000) } // --> </script>

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