/*按比例生成缩略图*/
function DrawImage(MyPic,W,H){
  var flag=false;
  var image=new Image();
  image.src=MyPic.src;
  if(image.width>0 && image.height>0){
    flag=true;
    if(image.width/image.height>= W/H){
      if(image.width>W){  
        MyPic.width=W;
        MyPic.height=(image.height*W)/image.width;
      }
	  else{
        MyPic.width=image.width;  
        MyPic.height=image.height;
      }
    }
    else{
      if(image.height>H){  
        MyPic.height=H;
        MyPic.width=(image.width*H)/image.height;     
      }
	  else{
        MyPic.width=image.width;  
        MyPic.height=image.height;
      }
    }
  }
} 


//more javascript from http://www.jcgo.cn
window.onload = enetgetMsg;
window.onresize = enetresizeDiv;
window.onerror = function(){}
var enetdivTop,enetdivLeft,enetdivWidth,enetdivHeight,enetdocHeight,enetdocWidth,enetobjTimer,i = 0;
function enetgetMsg()
{
try{
enetdivTop = parseInt(document.getElementById("enetMeng").style.top,10)
enetdivLeft = parseInt(document.getElementById("enetMeng").style.left,10)
enetdivHeight = parseInt(document.getElementById("enetMeng").offsetHeight,10)
enetdivWidth = parseInt(document.getElementById("enetMeng").offsetWidth,10)
enetdocWidth = document.body.clientWidth;
enetdocHeight = document.body.clientHeight;
document.getElementById("enetMeng").style.top = parseInt(document.body.scrollTop,10) + enetdocHeight + 10;// enetdivHeight
document.getElementById("enetMeng").style.left = parseInt(document.body.scrollLeft,10) + enetdocWidth - enetdivWidth
document.getElementById("enetMeng").style.visibility="visible"
enetobjTimer = window.setInterval("enetmoveDiv()",5)

}
catch(e){}
} 
 
function enetresizeDiv()
{
i+=1
if(i>600) enetcloseDiv()
try{
enetdivHeight = parseInt(document.getElementById("enetMeng").offsetHeight,10)
enetdivWidth = parseInt(document.getElementById("enetMeng").offsetWidth,10)
enetdocWidth = document.body.clientWidth;
enetdocHeight = document.body.clientHeight;
document.getElementById("enetMeng").style.top = enetdocHeight - enetdivHeight + parseInt(document.body.scrollTop,10)
document.getElementById("enetMeng").style.left = enetdocWidth - enetdivWidth + parseInt(document.body.scrollLeft,10)
}
catch(e){}
}
function enetmoveDiv()
{
try
{
if(parseInt(document.getElementById("enetMeng").style.top,10) <= (enetdocHeight - enetdivHeight + parseInt(document.body.scrollTop,10)))
{
window.clearInterval(enetobjTimer)
enetobjTimer = window.setInterval("enetresizeDiv()",1)
}
enetdivTop = parseInt(document.getElementById("enetMeng").style.top,10)
document.getElementById("enetMeng").style.top = enetdivTop - 1
}
catch(e){}
}
function enetcloseDiv()
{
document.getElementById('enetMeng').style.visibility='hidden';
if(enetobjTimer) window.clearInterval(enetobjTimer)
}