var strEmailRegExp="^[A-Z0-9._%+-]+@[A-Z0-9.-]+\\.[A-Z]{2,4}$";var strNonWhiteSpace="\\S";function IsEmpty(objTarget)
{var strValue=objTarget.value;if(strValue==null||!strValue.length)
return true;if(!IsMatched(strValue,strNonWhiteSpace,false))
return true;return false;}
function IsMatched(strTarget,strRegExp,bolCaseSensitive)
{var objRe=null;if(bolCaseSensitive)
objRe=new RegExp(strRegExp);else
objRe=new RegExp(strRegExp,"i");return objRe.test(strTarget);}
function IsValidEmail(strTarget)
{return IsMatched(strTarget,strEmailRegExp,false);}