function getObject(objectId) {
if(document.getElementById && document.getElementById(objectId)) {
return document.getElementById(objectId);
} else if (document.all && document.all(objectId)) {
return document.all(objectId);
} else if (document.layers && document.layers[objectId]) {
return document.layers[objectId];
} else {
return false;
}
}
function focusTab2(n){
/****************************/
for(var j=1;j<=4;j++){
    getObject('focusTab2_'+j).style.color="#717171";
}
var bg1="url(images/new_bt1.gif)";
var bg2="url(images/new_bt2.gif)";
for(var i=1;i<=4;i++){
if (i==n){
getObject('focusTab2_'+i).style.background=bg1;
getObject('focustable2_'+i).style.display='';
getObject('focusTab2_'+i).style.color="#000000";
}

else {
getObject('focusTab2_'+i).style.background=bg2;
getObject('focustable2_'+i).style.display='none';

}
}
}


/*按比例生成缩略图*/
function ImgSize(obj, MaxW, MaxH)
{
    if (obj != null) imageObject = obj;
    var state=imageObject.readyState;
    var oldImage = new Image();
    oldImage.src = imageObject.src;
    var dW=oldImage.width; var dH=oldImage.height;
    if(dW>MaxW || dH>MaxH) {
        a=dW/MaxW; b=dH/MaxH; 
        if(b>a) a=b;
        dW=dW/a; dH=dH/a;
    }
    if(dW > 0 && dH > 0)
        imageObject.width=dW;imageObject.height=dH;
    if(state!='complete' || imageObject.width>MaxW || imageObject.height>MaxH) {
        setTimeout("ResizeImage(null,"+MaxW+","+MaxH+")",40); 
    }
}

/*清空信息*/
function freset(obj){
　obj.reset();
}