function chkNumeric(strString)
   //  check for valid numeric strings	
   {
   var strValidChars = "0123456789.-";
   var strChar;
   var blnResult = true;

  // if (strString.length == 0) return false;

   //  test strString consists of valid characters listed above
   for (i = 0; i < strString.length && blnResult == true; i++)
      {
      strChar = strString.charAt(i);
      if (strValidChars.indexOf(strChar) == -1)
         {
         blnResult = false;
         }
      }
   return blnResult;
   }

function validate(myForm)
{
	
	    	if (myForm.name.value == "")
		{
			alert ("Please Enter Your Name");
			myForm.name.focus();
			return false;
		}
	
	
	    
	//check for if e-mail was entered
	if (myForm.email != null)
	{
		s = myForm.email.value;
		var isBlank = true;
		if (s.length == 0)
			isBlank = true;
		else
			for (var i = 0; i < s.length; i++)
			{
				var c = s.charAt(i);
				if ((c != ' ') && (c != '\t'))
					var isBlank = false;
			}
		if (isBlank)
		{
			alert("Please enter a valid e-mail address, \n hint - add @ sign");
			myForm.email.value = "";
			myForm.email.focus();
			return false;
		}
		//check for '@' sign
		if (s.indexOf('@') < 1)
		{
			var msg = "Please enter a valid e-mail address, e-mail \n should contain characters \' @ \' and \' . \' ";
			alert(msg);
			myForm.email.focus();
			myForm.email.select();
			return false;
		}

		//check for '.' after the '@' sign
		var pos = myForm.email.value.indexOf('@');
		var s = myForm.email.value.substring(pos+1, myForm.email.value.length);
		if (s.indexOf('.') < 1 || s.indexOf('.') ==  (s.length - 1))
		{
			var msg = "Please enter a valid e-mail address, e-mail \n should contain characters \' @ \' and \' . \' ";
			alert(msg);
			myForm.email.focus();
			myForm.email.select();
			return false;
		}

	}
		if (myForm.phone.value == 0)
		{
			alert ("Please Enter Your Phone Number");
			myForm.phone.focus();
			return false;
		}
		if (myForm.phone.value.length < 7)
		{
			alert ("Please Enter Valid Phone Number");
			myForm.phone.focus();
			return false;
		}
	if (chkNumeric(document.myForm.phone.value) == false) 
	 {
      alert("Please Check - Non Numeric Value!");
	  myForm.phone.focus();
	  return false;
      }
		
	    		
	    	if (myForm.textarea.value == "")
		{
			alert ("Please Enter Your Message");
			myForm.textarea.focus();
			return false;
		}

	
}