function checkForm(){
			var errorStr = '';
			if (document.fields.title.value==''){
				errorStr = errorStr + 'Please enter a title \n'
			}
			if (document.fields.shortD.value==''){
				errorStr = errorStr + 'Please describe your problem in the field "Short Description" \n'
			}
			if (document.fields.authorName.value==''){
				errorStr = errorStr + 'Please enter your name or E-Mail address \n'
			}
			if (errorStr != ''){
				alert (errorStr);
				return false;
			}
		}