//首页焦点图
$(function(){
	$('#banner').flexslider({
		animation: "slide",
		direction:"horizontal",
		easing:"swing"
	});
	
	$('#about').flexslider({
		animation: "slide",
		direction:"horizontal",
		easing:"swing"
	});
	
});
// 说明：js 控制网页图片等比例缩放效果  
function drawimage(imgd,fitwidth,fitheight)  
{  
var image=new image();  
image.src=imgd.src;  
if(image.width>0 && image.height>0)  
{  
if(image.width/image.height>= fitwidth/fitheight)  
{  
if(image.width>fitwidth)  
{  
imgd.width=fitwidth;  
imgd.height=(image.height*fitwidth)/image.width;  
}  
else  
{  
imgd.width=image.width;  
imgd.height=image.height;  
}  
}  
else  
{  
if(image.height>fitheight)  
{  
imgd.height=fitheight;  
imgd.width=(image.width*fitheight)/image.height;  
}  
else  
{  
imgd.width=image.width;  
imgd.height=image.height;  
}  
}  
}  
}