function msg(n_msg,x){
var msg="The following fields were found to be blank or incorrect.\nKindly check and correct it before submiting the form \n"
msg=msg+"------------------------------------------------------------------\n\n"
msg=msg+n_msg+"\n\n"
if(x==1){alert(msg); return false;}
}

//for email addresses
var regexp = /^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/;

//illegal characters in fields
var illegalCharStr = '~!@#$%^*()<>{}[]=?/\\\":;';

var illegalCharStrWeb = '~!@#$%^*()<>{}[]=?";';
 	
// Removes all characters which appear in string bag from string s.
function stripCharsInBag (s, bag)
{   var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character isn't whitespace.
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

//check for illegal characters
function checkIlleg(va)
{
	var stripped = stripCharsInBag (va, illegalCharStr);
	if(va != '' && stripped.length < va.length)
	{
		return false;
	}
	return true;
}

//check illegal characters for url
function checkIllegweb(va)
{
	var stripped = stripCharsInBag (va, illegalCharStrWeb);
	if(va != '' && stripped.length < va.length)
	{
		return false;
	}
	return true;
}

//check for tel number
function isDigit (c)
{   return ((c >= "0") && (c <= "9"))
}

//Verify TEXTAREA field - general
function VerifyMsg(f_ld,c_nt,cnt_fld) {

	var len = f_ld.value.length
	var cl

	if ((len == 1) && (f_ld.value.substring(0, 1) == " ")) {
		f_ld.value = ""
		len = 0
	}
	if (len > (c_nt-10)) {
		f_ld.value = f_ld.value.substring(0, c_nt)
		cl = 0
	}
	else {
		cl = c_nt - len
	}
	eval(cnt_fld).value = cl
}
	

//Delete Record check
function rsDelCheck(url) {
	var conf = confirm("The record will be permanently deleted from the database.\nAre you sure?")
	if(!conf) 
		return false;
	else
		window.location=url;
	}	
//---------------------------	
	
//Request Information validation
//---------------------------	
function RIValidate(){
	var x=0;
	var err_msg=""
	if(!document.RIForm.fname.value){
		err_msg=err_msg+"First Name\n"; x=1;
		}
	if(!document.RIForm.lname.value){
		err_msg=err_msg+"Family Name\n"; x=1;
		}
	if(!document.RIForm.company.value){
		err_msg=err_msg+"Company Name\n"; x=1;
		}
	if(!document.RIForm.phone.value){
		err_msg=err_msg+"Phone\n"; x=1;
		}
	if(!document.RIForm.email.value){
		err_msg=err_msg+"Email Address\n"; x=1;
		}
	else {
		email = document.RIForm.email.value;
		if(email.search(regexp) == -1){
		   	err_msg=err_msg+"Email Address - Invalid\n"; x=1;
			}
		}
		
	if(!document.RIForm.countryid[document.RIForm.countryid.selectedIndex].value){
		err_msg=err_msg+"Country\n"; x=1;
		}
		
/*if (document.RIForm.lens_type[0].checked == true) {	

		if(!document.RIForm.fl_focalspotsize.value){
			err_msg=err_msg+"Focal spot size\n"; x=1;
			}	
		if(!document.RIForm.fl_trans.value){
			err_msg=err_msg+"Transmission % \n"; x=1;
			}	
	
	}

else if (document.RIForm.lens_type[1].checked == true) {	

		if(!document.RIForm.hl_trans.value){
			err_msg=err_msg+"Transmission % \n"; x=1;
			}
	}*/
	return msg(err_msg,x)
}
//---------------------------	


function validatelensform(){
	var x=0;
	var err_msg=""
	if(!document.lensorderform.name.value){
		err_msg=err_msg+"Please enter your name\n"; x=1;
		}
	if(!document.lensorderform.company.value){
		err_msg=err_msg+"Company Name\n"; x=1;
		}
	if(!document.lensorderform.phone.value){
		err_msg=err_msg+"Phone\n"; x=1;
		}
	if(!document.lensorderform.email.value){
		err_msg=err_msg+"Email Address\n"; x=1;
		}
	else {
		email = document.lensorderform.email.value;
		if(email.search(regexp) == -1){
		   	err_msg=err_msg+"Email Address - Invalid\n"; x=1;
			}
		}
	if(!document.lensorderform.ship_add.value){
		err_msg=err_msg+"Shipping Address\n"; x=1;
		}	
	if(!document.lensorderform.bill_add.value){
		err_msg=err_msg+"Billing Address\n"; x=1;
		}	

	if(!document.lensorderform.countryid[document.lensorderform.countryid.selectedIndex].value){
		err_msg=err_msg+"Country\n"; x=1;
		}
	if(!document.lensorderform.comments.value){
		err_msg=err_msg+"Your applications\n"; x=1;
		}
	return msg(err_msg,x)
}
//---------------------------	


function RIValidate1(){
//alert("3")
	var x=0;
	var err_msg=""
	if(!document.RIForm.email.value){
		err_msg=err_msg+"Email Address\n"; x=1;
		}
	else {
		email = document.RIForm.email.value;
		if(email.search(regexp) == -1){
		   	err_msg=err_msg+"Email Address - Invalid\n"; x=1;
			}
		}
	if(!document.RIForm.password.value){
		err_msg=err_msg+"Password\n"; x=1;
		}
	if(!document.RIForm.password1.value){
		err_msg=err_msg+"Confirm Password\n"; x=1;
		}
	if(document.RIForm.password.value != document.RIForm.password1.value){
		err_msg=err_msg+"Password Mismatch\n"; x=1;
		}	
		
	if(!document.RIForm.titleid[document.RIForm.titleid.selectedIndex].value){
		err_msg=err_msg+"Prefix / Title\n"; x=1;
		}	
	if(!document.RIForm.fname.value){
		err_msg=err_msg+"First Name\n"; x=1;
		}
	if(!document.RIForm.lname.value){
		err_msg=err_msg+"Family Name\n"; x=1;
		}
	if(!document.RIForm.company.value){
		err_msg=err_msg+"Company Name\n"; x=1;
		}
	if(!document.RIForm.phone.value){
		err_msg=err_msg+"Phone\n"; x=1;
		}	
	if(!document.RIForm.countryid[document.RIForm.countryid.selectedIndex].value){
		err_msg=err_msg+"Country\n"; x=1;
		}
	if(!document.RIForm.researcharea.value){
		err_msg=err_msg+"Area of Research\n"; x=1;
		}		 
	return msg(err_msg,x)
	}
//---------------------------	

//Online Enquiry validation
//---------------------------	
function ValEnq(){
//alert("3")
	var x=0;
	var err_msg=""	
	if(!document.RIForm.comments.value){
		err_msg=err_msg+"Enquiry/Comments\n"; x=1;
		}	
	return msg(err_msg,x)
	}
//---------------------------	

//Enquiry/Comments validation
//---------------------------	
function ValComm(){
//alert("3")
	var x=0;
	var err_msg=""			 
	if(!document.RIForm.comments.value){
		err_msg=err_msg+"Enquiry/Comments\n"; x=1;
		}	
	return msg(err_msg,x)
	}
//---------------------------	


//Log-in Form validation
//---------------------------	
function lgnValidateS(){
//alert("3")
	var x=0;
	var err_msg=""
	if(!document.AdmLgnForm.usrname.value){
		err_msg=err_msg+"User Name\n"; x=1;
		}
	if(!document.AdmLgnForm.pswd.value){
		err_msg=err_msg+"Password\n"; x=1;
		}
	return msg(err_msg,x)
	}
//---------------------------	

//Change Password form Validation
//Uses function msg() defined at top
function passValidateS(){
	var x=0;
	var err_msg=""
	if(!document.PassForm.pswd.value){
		err_msg=err_msg+"Old Password\n"; x=1;
		}
	if(!document.PassForm.pswd1.value){
		err_msg=err_msg+"New Password\n"; x=1;
		}
	if(!document.PassForm.pswd2.value){
		err_msg=err_msg+"Re-enter Password\n"; x=1;
		}
	if(!(document.PassForm.pswd1.value == document.PassForm.pswd2.value) ){
		err_msg=err_msg+"Password Mismatch. Re-enter new passwords.\n"; x=1;
		}
	return msg(err_msg,x);
	}
	

//Change Password form Validation
//Uses function msg() defined at top
function newsValidateS(){
	var x=0;
	var err_msg=""
	if(!document.NewsForm.newstitle.value){
		err_msg=err_msg+"Title\n"; x=1;
		}
	//if(!document.NewsForm.newstext.value){
		//err_msg=err_msg+"Description\n"; x=1;
		//}
	if(!document.NewsForm.newsrldate.value){
		err_msg=err_msg+"Release Date\n"; x=1;
		}
	return msg(err_msg,x);
	}
		

//--- Show Layers ---------------------------------------------------
function hideLayer(whichLayer) {
	if (document.getElementById) {
		// this is the way the standards work
		document.getElementById(whichLayer).style.visibility = "hidden";
		}
	else if (document.all) {
		// this is the way old msie versions work
		document.all[whichlayer].style.visibility = "hidden";
		}
	else if (document.layers) {
		// this is the way nn4 works
		document.layers[whichLayer].visibility = "hidden";
		}
	}
function showLayer(whichLayer) {
	if (document.getElementById) {
		// this is the way the standards work
		document.getElementById(whichLayer).style.visibility = "visible";
		}
	else if (document.all) {
		// this is the way old msie versions work
		document.all[whichlayer].style.visibility = "visible";
		}
	else if (document.layers) {
		// this is the way nn4 works
		document.layers[whichLayer].visibility = "visible";
		}
	}
function showLayers() {	
	if (document.RIForm.prdid.value == 10) {		
		// then the user wants to hide the layer
		//alert(document.RIForm.prdid.value);
		showLayer("lyr_cdms");
		}
	else {
		// then the user wants to show the layer
		hideLayer("lyr_cdms");
		}
	}	
//--- Show Layers -------------------------------------------------x--