function doBlink() {
var blink = document.all.tags("BLINK")
for (var i=0; i<blink.length; i++)
blink[i].style.visibility = blink[i].style.visibility == "" ? "hidden" : "" 
}
function startBlink() {
if (document.all)
setInterval("doBlink()",1000)
}
window.onload = startBlink;
// -->

<!--

/* 

Trim function  used for removing the spaces from begining and end of all non-empty textfield 
and text area of entire  document irrespective  forms. Prefred to call this method at first of 
each validation functions. This function calls the Trim() method described next .
This method doesn't return anything

*/
function getTrimed(){
	var formNo=document.forms.length;
	for (j=0;j<formNo;j++){
		var max = document.forms[j].elements.length;
		for(var i=0; i< max; i++){
			if (document.forms[j].elements[i].type =="textarea" || document.forms[j].elements[i].type =="text" || document.forms[j].elements[i].type == "password"){
				trim(document.forms[j].elements[i]);
			}
		}
	}
}


/* 

This method is for removing the white spaces from the begining and end of a given Object . 
Doesn't return anything 

*/
<!--Pass the input objet reference-->

function trim(item) {
	var tmp = "";
	var item_length = item.value.length;
	var item_length_minus_1 = item.value.length - 1;
	for (index = 0; index < item_length; index++){
		if (item.value.charAt(index) != ' '){
			tmp += item.value.charAt(index);
		}
		else {
			if (tmp.length > 0){
					if (item.value.charAt(index+1) != ' ' && index != item_length_minus_1){
						tmp += item.value.charAt(index);
					}
			}
		}
	}
	item.value = tmp;
}


function isAlphaNumericWithSpace(theString){
	pat=/[^A-Za-z 0-9_-]/
	return (!(pat.test(theString)))
}


/* 

Empty check. This will check whether the passed field Empty or not. 
Returns  true if the field is empty  

*/

function isEmpty(theField){
	if (theField.value.length==0){
		return true
	}
	return false
}


/*
This function validates many fields at a time and shows the list of required fields as an alert.
For calling this function pass the text field and and a corresponding string for displaying in alert. 
For example if you want validates 2 form fields function call will like 
[ isEmptyAll(this.form.text1,'name',this.form.text2,'Age')] 
*/

function isEmptyAll(){
	var emptyFlag=false
	var msg="The Following fields are required."
	var len=arguments.length
	for (var i=0;i<len ; i=i+2){
		if (isEmpty(arguments[i])){
			msg=msg+"\n * "+arguments[i+1]
			if(!emptyFlag){
				arguments[i].focus();
			}
			emptyFlag=true
		}
	}
	if(emptyFlag){
		alert(msg);		
	}
	return emptyFlag;
}


/* 

Date validation--> 
	Call the function passing Day, Month and Year respectively. 
	It shows alert message and returns boolean.  
	
*/

function LeapYear(intYear) {
	if (intYear % 100 == 0) {
		if (intYear % 400 == 0) { return true; }
	}
	else {
		if ((intYear % 4) == 0) {
			return true; 
		}
	}
	return false;
}


function isValidDate(intDay, intMonth, intYear){
	if ((!isFinite(intDay)) || (intDay > 31) || (intDay == "")){
		alert("The days entered is incorrect. Please enter correct number for days.");
		return false;
	}
	
	if ((!isFinite(intMonth)) || (intMonth > 12) || (intMonth == "")){
		alert("The months entered is incorrect. Please enter correct number for months.");
		return false;
	}
	
	if ((!isFinite(intYear)) || (intYear < 1900) || (intYear == "")){
		alert("The years entered is incorrect. Please enter correct number for years.");
		return false;
	}
	
	if ((intMonth == 4 || intMonth == 6 || intMonth == 9 || intMonth == 11) && (intDay > 30 || intDay < 1)) {
		alert("Specify a valid date. Maximum date should be 30 for correspnding to month you have selected");
		return false;
	}
	
	if (intMonth == 2){
		if (LeapYear(intYear) == true && intDay > 29){
			alert("Invalid date. Maximum date should be 29 for  corresponding month!");
			return false;
		}
		else if (LeapYear(intYear) != true && intDay > 28){
			alert("Invalid date. Maximum date should be 28 for  corresponding month!");
			return false;
		}
	}
	return true;
}


/* 

Email Validation ---> 
	Pass the string to the function for validation. 
	It show alert message and returns true if the email address is valid returns false otherwise
*/

function emailCheck(emailStr) {
	var checkTLD=1;
	var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
	var emailPat=/^(.+)@(.+)$/;
	var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
	var validChars="\[^\\s" + specialChars + "\]";
	var quotedUser="(\"[^\"]*\")";
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
	var atom=validChars + '+';
	var word="(" + atom + "|" + quotedUser + ")";
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
	var matchArray=emailStr.match(emailPat);
	if (matchArray==null){
		alert("Email address seems incorrect (check @ and .'s)");
		return false;
	}
	
	var user=matchArray[1];
	var domain=matchArray[2];
	for (i=0; i<user.length; i++){
		if (user.charCodeAt(i)>127){
			alert("This username contains invalid characters.");
			return false;
		}
	}
	for (i=0; i<domain.length; i++){
		if (domain.charCodeAt(i)>127){
			alert("Ths domain name contains invalid characters.");
			return false;
		}
	}
	if (user.match(userPat)==null){
		alert("The username doesn't seem to be valid.");
		return false;
	}
	
	var IPArray=domain.match(ipDomainPat);
	if (IPArray!=null){
		for (var i=1;i<=4;i++){
			if (IPArray[i]>255){
				alert("Destination IP address is invalid!");
				return false;
			}
		}
		return true;
	}
	var atomPat=new RegExp("^" + atom + "$");
	var domArr=domain.split(".");
	var len=domArr.length;
	for (i=0;i<len;i++){
		if (domArr[i].search(atomPat)==-1){
			alert("The domain name does not seem to be valid.");
			return false;
		}
	}
	if (checkTLD && domArr[domArr.length-1].length!=2 && domArr[domArr.length-1].search(knownDomsPat)==-1){
		alert("The address must end in a well-known domain or two letter " + "country.");
		return false;
	}
	if (len<2){
		alert("This address is missing a hostname!");
		return false;
	}
	return true;
}

/* Checking Integer */
function isInteger(theValue){
	pat=/\D/
	if (pat.test(theValue)){
		return false
	}
	return true;
}

/* Checking double-->  */ 

function isDouble(TheNumber){
	var valid = true
	var GoodChars = "0123456789."
	var i = 0
	if (TheNumber==".")return false
	ary=TheNumber.split(".")
	if ((ary!=null)&&(ary.length>2)) return false
	for (i =0; i <= TheNumber.length -1; i++){
		if (GoodChars.indexOf(TheNumber.charAt(i)) == -1){
			return false
		} 
	} 
	return true
}


/*

This function checks whether the passed string is a alpha numeric or not. 
returns false if it is not an alphanumeric 

*/

function isAlphaNumeric(theString){
	pat=/\W/
	if (pat.test(theString)){
		return false
	}
	return true
}


/* This function checks whether passed string is valid phone number or not */ 


function CheckPhoneNumber(TheNumber){
	var valid = true
	var GoodChars = "0123456789()-+,/ "
	var i = 0
	for (i =0; i <= TheNumber.length -1; i++){
		if (GoodChars.indexOf(TheNumber.charAt(i)) == -1){
			valid = false
		} 
	} 
	return valid
}

function capitalize(theField){
	var textValue=theField.value
	if(textValue.charCodeAt(0)>96 && textValue.charCodeAt(0)<123)
	{
		var replaceChar=String.fromCharCode(textValue.charCodeAt(0)-32)
		temp=textValue.substring(2,textValue.length)
		textValue=replaceChar+temp
		theField.value=textValue
	}
	function test(){
		alert('test function');
	}
}

function isAlphabetsOnly(theString){
	pat=/[^A-Za-z]/
	return (!(pat.test(theString)))
}

function isAlphabetsWithSpace(theString){
	pat=/[^A-Z a-z]/
	return (!(pat.test(theString)))
}


function isBig(theField,maxSize){
	var str=theField.value;
	if(str.length > maxSize){
		alert("Feedback Message  can not be more than "+(maxSize+1)+" characters ");
		theField.focus();
		return true;
	}
	else
	{
		return false;
	}
}
/*
///// usage of how to call the different scripts. //////

function validated()
{
getTrimed();
if(isEmptyAll(document.Call.name,'Name Label in form ',document.Call.phoneNumber,'Phone Number ',document.Call.message,'Main interest / What information would you like? '))
{
return false;
}

if(!isAlphabetsWithSpace(document.Call.name.value)){
	alert("Name Label in form  requires alphabet only");
	document.Call.name.focus();
	document.Call.name.select();
	return false;
}

if(!CheckPhoneNumber(document.Call.phoneNumber.value)){
	alert("Phone Number  requires 0123456789 ()-+,/ only");
	document.Call.phoneNumber.focus();
	document.Call.phoneNumber.select();
	return false;
}

if(document.Call.email.value!=""){
	if(!emailCheck(document.Call.email.value)){
		document.Call.email.focus();
		document.Call.email.select();
		return false;
	}
}

if(document.Call.company.value!="" && !isAlphaNumericWithSpace(document.Call.company.value)){
	alert('Company  requires alphanumeric  only');
	document.Call.company.focus();
	document.Call.company.select();
	return false;
}

if(document.Call.country.value==" "){
	alert('Country  ' +" is required" );
	document.Call.country.focus();
	return false;
}

if(document.Call.whenCall.value==" ")
{
	alert('When would you like us to call  ' +" is required" );
	document.Call.whenCall.focus();
	return false;
}
//if(isBig(document.call.message,254)) return false;
return true;
}
*/