wt lab programs

note:Please insert tags


2b)
//take an image 1.jpg
html
head
title sp /title
/head
body
img src="1.jpg" id="id1" alt="hai this sai" height=100 width=100 onclick="fun(event)" /
/body

script
function fun(event)
{
pos_x = event.offsetX?(event.offsetX):event.pageX-document.getElementById("id1").offsetLeft;
pos_y = event.offsetY?(event.offsetY):event.pageY-document.getElementById("id1").offsetTop;
document.getElementById("id1").alt=""+pos_x+","+pos_y+"";
}
/script



5b)
//create a page 1.html
html
head
title saipavan /title
/head
body
form name="f1" onsubmit="valid()" action="1.html"
username:input type="text" name="user" size="10"
input type="submit" value="submit"
/form
/body
/html

script
function valid()
{
var user=document.f1.user.value;
var pattern=new RegExp("^[a-zA-Z][a-zA-Z0-9]*$");
var res=pattern.exec(user);
if(res)
alert("valid");
else
alert("not valid");
}
/script