function validate()
{
var name=document.getElementById('name').value;
if(name=='')
{
alert("Please enter your name");
document.getElementById('name').focus();
return false;
}
var str=document.getElementById('name').value;
        for (var i = 0; i < str.length; i++)
{
var ch = str.substring(i, i + 1);
    if (((ch < "a" || "z" < ch) && (ch < "A" || "Z" < ch)) && ch != ' ')
    {
    alert("The name field only accepts letters & spaces.");
    document.getElementById('name').focus();
    return false;
    }
} 
var company_name=document.getElementById('company_name').value;
if(company_name=='')
{
alert("Please enter your company name");
document.getElementById('company_name').focus();
return false;
}
if (document.getElementById('ph').value =="")
    {
        alert("Please enter your telephone no."); 
       document.getElementById('ph').focus();
        return false;
    }
	
	
	
	var phoneexp1 =/^[0-9]+$/;
if (! document.getElementById('ph').value.match(phoneexp1))
{
alert("please enter number only for telephone feild");
 document.getElementById('ph').value='';
document.getElementById('ph').focus();
return false ;
}
if (document.getElementById('mo').value =="")
    {
        alert("Please enter your mobile no."); 
       document.getElementById('mo').focus();
        return false;
    }
	
	
	
	var mobexp1 =/^[0-9]+$/;
if (! document.getElementById('mo').value.match(mobexp1))
{
alert("please enter number only for mobile feild");
 document.getElementById('mo').value='';
document.getElementById('mo').focus();
return false ;
}

if (document.getElementById('email').value =="")
    {
        alert("Please enter email address"); 
        document.getElementById('email').focus();
        return false;
    }
	var oldemail=document.getElementById('email').value ;
	if(oldemail.split("@")==oldemail || oldemail.split(".")==oldemail)
	{
	alert("Please enter the correct email address");
	document.getElementById('email').focus();
	return false;
	}
	
var password=document.getElementById('password').value;
if(password=='')
{
alert("Please enter your password");
document.getElementById('password').focus();
return false;
}

return true;
}