function Validacija_Knjige()
{
var form = document.forms.knjiga;
if((form.name.value=="") || (form.comment.value=="null") || form.skod.value=="null")
{
alert('Niste uneli sva potrebna polja!');
form.elements[0].focus();
}
else
form.submit();
}
function prikazi_veliku_sliku(imageName,imageWidth,imageHeight,alt,posLeft,posTop) { // v4.01
newWindow = window.open("","newWindow","width="+imageWidth+",height="+imageHeight+",scrollbars=no,left="+posLeft+",top="+posTop);
newWindow.document.open();
newWindow.document.write(''+alt+'');
newWindow.document.write('![\"'+alt+'\"](\"'+imageName+'\" "\\"'+alt+'\\"")
'); newWindow.document.write('');
newWindow.document.close();
newWindow.focus();
}