Javascript鼠標移動顯示圖片的簡單實例

 本篇文章主要是對js鼠標移動顯示圖片的簡單實例進行了介紹，需要的朋友可以過來參考下，希望對大家有所幫助

一、js代碼    代碼如下: //***********默認設置定義.*********************    tPopWait=50;//停留tWait豪秒後顯示提示。    tPopShow=5000;//顯示tShow豪秒後關閉提示    showPopStep=20;   popOpacity=99;     //***************內部變量定義*****************    sPop=null;   curShow=null;   tFadeOut=null;   tFadeIn=null;   tFadeWaiting=null;     document.write("<mce:style type='text/css'id='defaultPopStyle'><!--   ");   document.write(".cPopText { line-break : normal;word-break : break-all ; background-color: #FEFCF3;color:#000000; border: 1px #E7B68C solid;padding-top: 2px; padding-right: 4px; padding-left: 4px; padding-bottom: 2px;font-size: 12px;width:96px; filter: Alpha(Opacity=0)}");   document.write("   --></mce:style><style type='text/css'id='defaultPopStyle' mce_bogus="1">");   document.write(".cPopText { line-break : normal;word-break : break-all ; background-color: #FEFCF3;color:#000000; border: 1px #E7B68C solid;padding-top: 2px; padding-right: 4px; padding-left: 4px; padding-bottom: 2px;font-size: 12px;width:96px; filter: Alpha(Opacity=0)}");   document.write("</style>");   document.write("<div id='dypopLayer' style="position:absolute;z-index:1000;" mce_style="position:absolute;z-index:1000;" class='cPopText'></div>");        function showPopupText(){   var o=event.srcElement;       MouseX=event.x;       MouseY=event.y;       if(o.alt!=null && o.alt!=""){o.dypop=o.alt;o.alt=""};           if(o.title!=null && o.title!=""){o.dypop=o.title;o.title=""};       if(o.dypop!=sPop) {               sPop=o.dypop;               clearTimeout(curShow);               clearTimeout(tFadeOut);               clearTimeout(tFadeIn);               clearTimeout(tFadeWaiting);                if(sPop==null || sPop=="") {                   dypopLayer.innerHTML="";                   dypopLayer.style.filter="Alpha()";                   dypopLayer.filters.Alpha.opacity=0;                    }               else {                   if(o.dyclass!=null) popStyle=o.dyclass                        else popStyle="cPopText";                   curShow=setTimeout("showIt()",tPopWait);               }         }   }     function showIt(){           dypopLayer.className=popStyle;           dypopLayer.innerHTML=sPop;           popWidth=dypopLayer.clientWidth;           popHeight=dypopLayer.clientHeight;           if(MouseX+12+popWidth>document.body.clientWidth) popLeftAdjust=-popWidth-24               else popLeftAdjust=0;           if(MouseY+12+popHeight>document.body.clientHeight) popTopAdjust=-popHeight-24               else popTopAdjust=0;             dypopLayer.style.left=MouseX+12+document.body.scrollLeft+popLeftAdjust;           dypopLayer.style.top=MouseY+12+document.body.scrollTop+popTopAdjust;           dypopLayer.style.filter="Alpha(Opacity=0)";           fadeOut();   }     function fadeOut(){       if(dypopLayer.filters.Alpha.opacity<popOpacity) {           dypopLayer.filters.Alpha.opacity+=showPopStep;           tFadeOut=setTimeout("fadeOut()",1);           }           else {               dypopLayer.filters.Alpha.opacity=popOpacity;               tFadeWaiting=setTimeout("fadeIn()",tPopShow);               }   }     function fadeIn(){       if(dypopLayer.filters.Alpha.opacity>0) {           dypopLayer.filters.Alpha.opacity-=1;           tFadeIn=setTimeout("fadeIn()",1);           }   }   document.onmouseover=showPopupText;     二、html代碼包含js代碼即可，使用范例   <a href="../UpLoadFile/200911784060017.jpg" target="_blank" title="<img src=../UpLoadFile/200911784060017.jpg  />">大</a> <a href="../UpLoadFile/200911784060018.jpg" target="_blank" title="<img src=../UpLoadFile/200911784060018.jpg width=96 height=70 />">小</a>