function validate()
{
var name=document.getElementById('name').value;
var city=document.getElementById('city').value;
var contact=document.getElementById('contact').value;
var email=document.getElementById('email').value;
var time=document.getElementById('time').value;
if(name.length==0)
{
alert("Enter Your Name");
return false;
}
else if(city.length==0)
{
alert("Enter Your City");
return false;
}
else if(contact.length==0)
{
alert("Enter Your Contact Number");
return false;
}
else if(isNaN(contact))
{
alert("Enter valid Contact Number");
return false;
}
if(email.length==0)
{
alert("Enter Your Email Address");
return false;
}
var at="@";
var dot=".";		
var lat=email.indexOf(at);		
var lstr=email.length;
var ldot=email.indexOf(dot);
if (lat==-1)
{
alert("Invalid E-mail ID")
return false
}
else if(lat==-1 || lat==0 || lat==lstr)
{
alert("Invalid E-mail ID")
return false
}
else if(ldot==-1 || ldot==0 || ldot==lstr){
alert("Invalid E-mail ID")
return false
}
else if(email.indexOf(at,(lat+1))!=-1){
alert("Invalid E-mail ID")
return false
}
else if(email.substring(lat-1,lat)==dot || email.substring(lat+1,lat+2)==dot){
alert("Invalid E-mail ID")
return false
}
else if(email.indexOf(dot,(lat+2))==-1){
alert("Invalid E-mail ID")
return false
}
else if(email.indexOf(" ")!=-1){
alert("Invalid E-mail ID")
return false
}
else if(time.length==0)
{
alert("Enter Time");
return false;
}
return true;
}