//设置图片大小
function picSetting(obj,swid,shei)
{
	wid = obj.width;
	hei = obj.height;
	if(wid == hei){
		if(wid > swid){
			obj.width=swid;
			obj.height=swid;
		}else{
			obj.width=wid;
			obj.height=hei;
		}
	}else if(wid > hei){
		if(wid > swid){
			obj.width=swid;
			obj.height=hei*swid/wid;
		}else{
			obj.width=wid;
			obj.height=hei;
		}
	}else{
		if(hei > shei){
			obj.height=shei;
			obj.width=wid*shei/hei;
		}else{
			obj.width=wid;
			obj.height=hei;
		}
	}
}
function picSetting2(obj,iOuterWidth,iOuterHeight)
{
	//调整后大小
	var iAdjWidth = 0;
	var iAdjHeight = 0;
	//原图大小
	var iWidth = obj.width;
	var iHeight = obj.height;
	
	if (iWidth > iOuterWidth || iHeight > iOuterHeight)
	{
		if (iWidth >= iHeight)
		{
			iAdjWidth = iOuterWidth;
			iAdjHeight = parseInt((iAdjWidth * iHeight)/iWidth);
		}
		else
		{
			iAdjHeight = iOuterHeight;
			iAdjWidth = parseInt((iAdjHeight * iWidth)/iHeight);
		}
	}
	else
	{
		iAdjWidth = iWidth;
		iAdjHeight = iHeight;
	}
	
	obj.width = iAdjWidth;
	obj.height = iAdjHeight;
}