// JavaScript Document

<!--
//图片按比例缩放
var flag=false;
function DrawImage_ArticalSmallImage(ImgD){
var image=new Image();
var iwidth =600; //定义允许图片宽度
var iheight = 1000; //定义允许图片高度
image.src=ImgD.src;
if(image.width>0 && image.height>0){
flag=true;
if(image.width/image.height>= iwidth/iheight){
if(image.width>iwidth){ 
ImgD.width=iwidth;
ImgD.height=(image.height*iwidth)/image.width;
}else{
ImgD.width=image.width; 
ImgD.height=image.height;
}

ImgD.alt=image.width+"×"+image.height;
}
else{
if(image.height>iheight){ 
ImgD.height=iheight;
ImgD.width=(image.width*iheight)/image.height; 
}else{
ImgD.width=image.width; 
ImgD.height=image.height;
}
ImgD.alt=image.width+"×"+image.height;
}
}
} 

function DrawImage_ArticalSmallImage2(ImgD){
var image=new Image();
var iwidth =160; //定义允许图片宽度
var iheight = 160; //定义允许图片高度
image.src=ImgD.src;
if(image.width>0 && image.height>0){
flag=true;
if(image.width/image.height>= iwidth/iheight){
if(image.width>iwidth){ 
ImgD.width=iwidth;
ImgD.height=(image.height*iwidth)/image.width;
}else{
ImgD.width=image.width; 
ImgD.height=image.height;
}

ImgD.alt=image.width+"×"+image.height;
}
else{
if(image.height>iheight){ 
ImgD.height=iheight;
ImgD.width=(image.width*iheight)/image.height; 
}else{
ImgD.width=image.width; 
ImgD.height=image.height;
}
ImgD.alt=image.width+"×"+image.height;
}
}
}
//-->

function check()
{
	if (document.form1.input2.value=="")
	{
		alert('Please enter the Quantity value!');return false;
	}
	
	
	if (document.form1.input3.value=="")
	{
		alert('Please enter the Description!');return false;
	}
	
	if (document.form1.input4.value=="")
	{
		alert('Please enter your name!');return false;
	}
	
	if (document.form1.input8.value=="")
	{
		alert('Please enter your right email! It is very important!');return false;
	}
	
	var c2 = /^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/; //检测邮箱
	if (!c2.test(document.form1.input8.value))
	{
	alert("Sorry, the format of your email is incorrect! Retry please!");return false;
	}

}