function validation(thisform)
{	
	with(thisform)
	{
		if(emptyvalidation(pname,"Please fill in your Name.")==false) 
			{
			pname.focus();
			return false;
			}
		if (emptyvalidation(pphone,"Please fill in your Phone Number.")==false) 
			{
			pphone.focus();
			return false;
			}
			else if (thisform.pphone.value.charAt(0)=="1")
	 
      {
            alert("Please enter a valid phone number.Do not start a phone number with 1.");
			pphone.focus();
                return false;
       }
	   else
		 {
		   		 for(var i=0;i<pphone.value.length;i++)
				  {
					  if(!isDigit(pphone.value.charAt(i)))
					  {
						alert("Sorry,Phone number cannot contain characters.");
						pphone.select();
						return false;
					  }
				  }
		 }	
		if(emptyvalidation(pemail,"Please fill in your Email Address.")==false) 
			{
			pemail.focus();
			return false;
			}
		if(validate_email(pemail)==false)
			{
			pemail.select();
			pemail.focus();
			return false;
			}
		if(emptyvalidation(pcomments,"Please fill in your Comments.")==false) 
			{
			pcomments.focus();
			return false;
			}
	 	 thisform.submit();
	 }
	
}

function isDigit(num)
{
	 if(num.length>1)
	   {
		return false;
	   }
    var string="1234567890";

	 if(string.indexOf(num)!=-1)
	  {
	   return true;
	  }
 return false;
}