// JavaScript Document



function validate()

{

	

	if(document.frm.first.value=="") 

	{

		 alert("Please enter firstname");

		 document.frm.first.focus();

		 return;

		 

	}

	if(document.frm.first.value!= "")

	{

		if (isNaN(document.frm.first.value) != true)

		{

			alert("invalid firstname");

			document.frm.first.focus();

			return false;

			}

	}

	if(document.frm.last.value=="")

	{

		alert("please enter lastname");

		document.frm.last.focus();

		return;

	}

	if(document.frm.last.value!= "")

	{

		if (isNaN(document.frm.last.value) != true)

		{

			alert("invalid lastname");

			document.frm.last.focus();

			return false;

		}

	}

	if(document.frm.address.value!= "")

	{

		if (isNaN(document.frm.address.value) != true)

		{

			alert("invalid address");

			document.frm.address.focus();

			document.frm.address.select();

			return false;

		}

	}

	if (document.frm.phone.value!= "")

			{  

				if (isNaN(document.frm.phone.value) == true)

				{

					alert("Invalid phone No"); 

					document.frm.phone.focus();

					document.frm.phone.select();

					return false;

				}	 

			}

	 if(document.frm.email.value=="")

     {

        alert("E-mail cannot be blank");

		document.frm.email.focus();

	    return;	  

     }	

     var str=document.frm.email.value;

     var flag=0;

	 len=str.length;

	 //document.write(str);

	 for(i=1;i<len;i++)

	 {

	    if(str.charAt(i)=="@")

	    { 

	       for(i=i;i<len;i++)

		   {

		      if(str.charAt(i)==".")

	          {  

		         var len1=len-i;

			     if(len1>2)

			     {

		            flag=1;

		            break;

			     }

		      }

		   }

	    }

	 }

	 if(flag==0)

	{

	     alert("You have entered invalid E-mail Address");

		 document.frm.email.focus();

		 document.frm.email.select();

		 return;

	}	 

	  if(document.frm.country.value=="Select")

	  {

		 alert("Please select Country"); 

		 document.frm.country.focus();

		  return;

	  }

	  if(document.frm.feedback.value=="")

	 {

		 alert("Please fill up the feedback");

		  document.frm.feedback.focus();

		 return;

		 

	 }

	 if(document.frm.feedback.value!= "")

	{

		if (isNaN(document.frm.feedback.value) != true)

		{

			alert("invalid feedback");

			document.frm.feedback.focus();

			return false;

		}

	}

		document.frm.action="scripts/insertNmail.asp";

	    document.frm.submit() 

	 

	

	

}