function checkform()
{
    if(document.form1.name.value=="")
	{
		alert("Enter Name Please...");
		form1.name.focus();
		return false;
	}
	if(document.form1.phone1.value=="")
	{
		alert("Enter Phone Number Please...");
		form1.phone1.focus();
		return false;
	}
	if(!phoneformat(document.form1.phone1.value))
    {
        alert("Only numbers allowed in Phone Number.");
        form1.phone1.focus();
        return false;
    }
	if(document.form1.phone2.value=="")
	{
		alert("Enter Phone Number Please...");
		form1.phone2.focus();
		return false;
	}
	if(!phoneformat(document.form1.phone2.value))
    {
        alert("Only numbers allowed in Phone Number.");
        form1.phone2.focus();
        return false;
    }
	if(document.form1.phone3.value=="")
	{
		alert("Enter Phone Number Please...");
		form1.phone3.focus();
		return false;
	}
	if(!phoneformat(document.form1.phone3.value))
    {
        alert("Only numbers allowed in Phone Number.");
        form1.phone3.focus();
        return false;
    }
	if(document.form1.city.value=="")
	{
		alert("Enter Your City Name Please...");
		form1.city.focus();
		return false;
	}
	if(document.form1.email.value=="")
	{
		alert("Enter Email Address Please...");
		form1.email.focus();
		return false;
	}
	else if (document.form1.email.value.indexOf("@")==-1)
	{
    	alert("Enter Valid Email Address");
		form1.email.focus();
    	return false;
	}
	else if (document.form1.email.value.indexOf(".")==-1)
	{
    	alert("Enter Valid Email Address");
		form1.email.focus();
    	return false;
	}
	if(document.form1.problem.value=="")
	{
		alert("Enter Your Plumbing Problem...");
		form1.problem.focus();
		return false;
	}

}
function phoneformat(value)
{
	var a = value.length;
	chk1="1234567890";
	for(i=0;i<a;i++)
	{
		ch1=value.charAt(i);
		rtn1=chk1.indexOf(ch1);
		if(rtn1==-1)
		return false;
	}
	return true;
}