Javascript Trim and Multiple Email Validation

function trim(str) {

if (!str

typeof str != 'string')

return null;

return str.replace(/^[\s]+/, '').replace(/[\s]+$/, '').replace(/[\s]{2,}/, ' ');

}

function emails(oSrc, args) {

var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;

var address = args.Value;

var eadrs = address.split(';');



for (i = 0; i < eadrs.length; i++) {

var adr=trim(eadrs[i]);

if (adr != "" && adr != null)

if (reg.test(adr) == false) {

args.IsValid=false;

}

}

}
 





ClientValidationFunction="emails" ControlToValidate="TextBox2">

Clear People picker on dropdown change index in sp 2010

clearPicker()
{
var control;
var arr = document.getElementsByTagName("div");
for (var i = 0; i < arr.length; i++)
{
if (arr[i].id.indexOf("upLevelDiv") > 0)
{
control = arr[i];
}

}
control.innerHTML = '';
arr = document.getElementsByTagName("input");
for (var i = 0; i < arr.length; i++)
{
if (arr[i].name.indexOf("hiddenSpanData") > 0)
{
control = arr[i];
 }
}
control.value = '';
}