function showPreview(ImgFile,Txt) {
document.getElementById('CSPreviewImg').src=ImgFile;
document.getElementById('CaseStudiesPreview').style.display='';
document.getElementById('CSPreviewTxt').innerHTML=Txt;
if (document.all){
document.getElementById('CaseStudiesPreview').style.left = document.getElementById('textarea').offsetLeft + 'px';
}
};

function hidePreview() {
document.getElementById('CaseStudiesPreview').style.display='none';
document.getElementById('CSPreviewImg').src='images/loading.gif';
document.getElementById('CSPreviewTxt').innerHTML='';
};