function validation(form){ //actual validation start in this method
	var errMsg = "Please enter OR provide a valid information for the following fields:\n";
	errMsg = errMsg + "_______________________________________\n\n";
	
	var noErr = true;
	if(!checkEntries(form.name)){errMsg = errMsg + " -  Name \n";noErr = false;}
	if(!checkEntries(form.contactnum)){errMsg = errMsg + " -  Contact Number \n";noErr = false;}
	
	if(!checkEntries(form.email)){errMsg = errMsg + " -  Email \n";noErr = false;}
	else{
    	if(!emailValidation(form.email)){errMsg = errMsg + " -  Valid Email \n";noErr = false;}			
    }	
	if(!checkEntries(form.enquiry)){errMsg = errMsg + " -  Enquiry \n";noErr = false;}
	
	if(!isAllNumber(form.contactnum)){errMsg+=" - Please exclude the space and/or '+' or enter a valid contact number.\n";noErr = false;}

	if(!noErr)alert(errMsg);
		return noErr;
}

	
	function isAllAlphabet(elements){ //to check if entries is all alphabet, for textfield
	var flag = true;
	for(var i=0;i<elements.value.length;i++){
		if(!isNaN(elements.value.charAt(i)))flag = false;	
	}
	return flag;
	}
	
	function isAllNumber(elements){ //to check if entries is all number, for textfield
		var flag = true;
		for(var i=0;i<elements.value.length;i++){
			if(isNaN(elements.value.charAt(i)))flag = false;	
		}
		return flag;
	}

	function checkEntries(elements){ //to check if any entries is entered, for textfield
		return elements.value != 0;
	}

	 function emailValidation(s) {
	 var flag = true;
   		 for (var i=0; i < s.length; i++) {
      		if ((s.indexOf("@") != -1) && (s.indexOf(".") != -1)) {
       			 flag = false;
     			}
  	 	 }
   		 return flag;
 	 }