// JavaScript Document
function NoError(){return true;}   
window.onerror = NoError;

function showtab(m,n,count){
	for(var i=1;i<=count;i++){
		if (i==n){
			$("#td_"+m+"_"+i)[0].className="ok";
			$("#tab_"+m+"_"+i)[0].style.display="";
		}
		else{
			$("#td_"+m+"_"+i)[0].className="nones";
			$("#tab_"+m+"_"+i)[0].style.display="none";
		}
	}
}
$(function(){
	setmenu();
	setprobg();
	$("#tab_1_2")[0].style.display="none";
});
//显示菜单
function setmenu(){
	$("#menu").mouseover(function(){
		$("#nmenu").slideDown(400);
	});
	$("#banner").mouseover(function(){
		$("#nmenu").slideUp(400);
	});
}
//产品图片背景
function setprobg(){
	$("#prolist li").mouseover(function(){
		$(this).attr("class","lihover");
	});
	$("#prolist li").mouseout(function(){
		$(this).attr("class","");
	});
}
var flag=false;
function DrawImage(ImgD,ImgWidth,ImgHeight){
	var image=new Image();
	var FitWidth=ImgWidth;//图片的最大宽，超过这个值就会自动缩小
	var FitHeight=ImgHeight;//按比例缩小
	image.src=ImgD.src;
	if(image.width>0 && image.height>0){
		flag=true;
		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;
			}
			ImgD.alt="";
		}
		else{
			if(image.height>FitHeight){
				ImgD.height=FitHeight;
				ImgD.width=(image.width*FitHeight)/image.height;
			}else{
				ImgD.width=image.width;
				ImgD.height=image.height;
			}
			ImgD.alt="";
		}
	}
}