js拖拽
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
</HEAD>
<BODY>
<div style=" border: 1px solid ;width:300px;height:400px;position:absolute;top:10px;left:10px">
<div id="d" onfocus=" move()" style="background-color:red;width:100px;height:100px"></div>
</div>
</BODY>
<script type="text/javascript">
var dragging = false;
var test;
var mouseY;
var mouseX;
window.onload = function(){
test = document.getElementById("d");
test.onmousedown = down;
test.onmousemove = move;
document.onmouseup = up;
test.style.position = "relative";
test.style.top = "0px";
test.style.left = "0px";
}
function down(event){
event = event || window.event;
dragging = true;
mouseX = parseInt(event.clientX);
mouseY = parseInt(event.clientY);
objY = parseInt(test.style.top);
objX = parseInt(test.style.left);
}
function move(event){
event = event || window.event;
if(dragging == true){
var x,y;
y = event.clientY - mouseY + objY;
x = event.clientX - mouseX + objX;
test.style.top = y + "px";
test.style.left = x + "px";
}
}
function up(){
dragging = false;
}
//-->
</SCRIPT>
</HTML>
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
</HEAD>
<BODY>
<div style=" border: 1px solid ;width:300px;height:400px;position:absolute;top:10px;left:10px">
<div id="d" onfocus=" move()" style="background-color:red;width:100px;height:100px"></div>
</div>
</BODY>
<script type="text/javascript">
var dragging = false;
var test;
var mouseY;
var mouseX;
window.onload = function(){
test = document.getElementById("d");
test.onmousedown = down;
test.onmousemove = move;
document.onmouseup = up;
test.style.position = "relative";
test.style.top = "0px";
test.style.left = "0px";
}
function down(event){
event = event || window.event;
dragging = true;
mouseX = parseInt(event.clientX);
mouseY = parseInt(event.clientY);
objY = parseInt(test.style.top);
objX = parseInt(test.style.left);
}
function move(event){
event = event || window.event;
if(dragging == true){
var x,y;
y = event.clientY - mouseY + objY;
x = event.clientX - mouseX + objX;
test.style.top = y + "px";
test.style.left = x + "px";
}
}
function up(){
dragging = false;
}
//-->
</SCRIPT>
</HTML>