function getText(txtbox, e){
            var maxlength = 2000;
            var keyCode;
            if (window.event)
                keyCode = window.event.keyCode;
            else
                keyCode = e.which; 

            switch (keyCode){
                case 8 : 
                    return true;
                default :
                    if (txtbox.value.length == maxlength)
                        return false;
                    else
                        setText(txtbox);
            }
            return true;
        }         
        function setText(txtbox){
            document.getElementById('<%=lblCount.ClientID %>').innerHTML = txtbox.value.length.toString();
        }
		
		
		
		 function validateUpload() { 
  
        var upload = $find("<%= RadUpload1.ClientID %>"); 
        var fileInputs = upload.getFileInputs();
        var isExtensionInvalid = false;
        
        // In case there are multiple inputs 
        for (var i = 0; i < fileInputs.length; i++) { 
            if ((fileInputs[i].value != "")) {
                if (upload.isExtensionValid(fileInputs[i].value)) {
                    return true; 
                }
                else {
                    alert("The extension of the file selected is invalid."); 
                    return false; 
                }
            } 
        } 
        alert("Please select a file to upload"); 
        return false; 
    }