| // JavaScript Document |
| /******************** |
| * 取窗口滚动条高度 |
| ******************/ |
| function getScrollTop() |
| { |
| var scrollTop=0; |
| if(document.documentElement&&document.documentElement.scrollTop) |
| { |
| scrollTop=document.documentElement.scrollTop; |
| } |
| elseif(document.body) |
| { |
| scrollTop=document.body.scrollTop; |
| } |
| return scrollTop; |
| } |
| /******************** |
| * 取窗口可视范围的高度 |
| *******************/ |
| function getClientHeight() |
| { |
| var clientHeight=0; |
| if(document.body.clientHeight&&document.documentElement.clientHeight) |
| { |
| var clientHeight =(document.body.clientHeight<document.documentElement.clientHeight)?document.body.clientHeight:document.documentElement.clientHeight; |
| } |
| else |
| { |
| var clientHeight =(document.body.clientHeight>document.documentElement.clientHeight)?document.body.clientHeight:document.documentElement.clientHeight; |
| } |
| return clientHeight; |
| } |
| /******************** |
| * 取文档内容实际高度 |
| *******************/ |
| function getScrollHeight() |
| { |
| returnMath.max(document.body.scrollHeight,document.documentElement.scrollHeight); |
| } |
| function test(){ |
| if(getScrollTop()+getClientHeight()==getScrollHeight()){ |
| alert("到达底部"); |
| }else{ |
| alert("没有到达底部"); |
| } |
| } |
| //------------------------判断窗体滚动条到达底部---------------------------- |
| function reachBottom(){ |
| var scrollTop =0; |
| var clientHeight =0; |
| var scrollHeight =0; |
| if(document.documentElement && document.documentElement.scrollTop){ |
| scrollTop = document.documentElement.scrollTop; |
| }elseif(document.body){ |
| scrollTop = document.body.scrollTop; |
| } |
| if(document.body.clientHeight && document.documentElement.clientHeight){ |
| clientHeight =(document.body.clientHeight < document.documentElement.clientHeight)? document.body.clientHeight : document.documentElement.clientHeight; |
| }else{ |
| clientHeight =(document.body.clientHeight > document.documentElement.clientHeight)? document.body.clientHeight : document.documentElement.clientHeight; |
| } |
| scrollHeight =Math.max(document.body.scrollHeight,document.documentElement.scrollHeight); |
| if(scrollTop + clientHeight == scrollHeight){ |
| returntrue; |
| }else{ |
| returnfalse; |
| } |
| } |
| //-----------------判断DIV滚动条到达底部----------------------- |
| function sc(){ |
| var e=document.getElementById('pop_contenter_id'); |
| if(e.scrollTop>0){ |
| var heigh=e.offsetHeight+e.scrollTop; |
| if(heigh>e.scrollHeight-30){ |
| alert('到底了 大概的。'); |
| } |
| } |
| } |
var s=setInterval("sc('{$url}')",4000);
|