function doNotPaste(){
    clipboardData.clearData();
}

function validateNumber(e){
    if(e.keyCode > 57 || e.keyCode < 48)
        return false;
}

function convertToFarsi(){
    if (window.event.keyCode>31 && window.event.keyCode<128 && window.event) 	
        window.event.keyCode=' !\"#$%،گ)(×+و-./0123456789:کؤ=.؟@ِإ}ىُىلآةـ،/ءد×؛َءٍف‘{ًْإ~جژچ^_پشذزیثبلاهتنمئدخحضقسفعرصطغظ<|>ّ' . charCodeAt(window.event.keyCode-32);
}
  
  

function checkLength(item, iLength){
    if(item.value.length > iLength)
        return false;
}