// JavaScript Document
function check_fields() 
{
if (document.form.Name.value =="")
{
alert("Please Enter Your Name");
document.form.Name.focus();
return (false);
}
if (document.form.Company.value =="")
{
alert("Please Enter Your Company Name");
document.form.Company.focus();
return(false);
}
if (document.form.city.value =="")
{
alert("Please Enter Your City");
document.form.city.focus();
return(false);
}
if (document.form.state.value =="")
{
alert("Please Enter Your State");
document.form.state.focus();
return(false);
}
if (document.form.Country.value =="selected")
{
alert("Please Select Your Country");
document.form.Country.focus();
return(false);
}
if (document.form.phone.value =="")
{
alert("Please Enter Your Phone Number");
document.form.phone.focus();
return(false);
}
if(!check_email(document.form.email.value))
{
alert("Please Check Your E-Mail Address");
document.form.email.focus();
return(false);
}
document.form.submit ();
return(true);
return(false);
}

function check_email(e) {
ok = "1234567890qwertyuiop[]asdfghjklzxcvbnm.@-_QWERTYUIOPASDFGHJKLZXCVBNM";

for(i=0; i < e.length ;i++){
if(ok.indexOf(e.charAt(i))<0){ 
return (false);
}	
} 

if (document.images) {
re = /(@.*@)|(\.\.)|(^\.)|(^@)|(@$)|(\.$)|(@\.)/;
re_two = /^.+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$/;
if (!e.match(re) && e.match(re_two)) {
return (-1);		
} 

}

}

function changeImage(filename)
{
   document.getElementById('mainimage').src = filename;
}