var test_imce_image=document.getElementById('imceimage-field_mainimage_545x243-');
if(test_imce_image)
{
	if(test_imce_image.src=='')
		test_imce_image.style.display='none';
	else if(test_imce_image.src.length>=4)
	{
		var test_char1=test_imce_image.src.charAt(test_imce_image.src.length-3);
		var test_char2=test_imce_image.src.charAt(test_imce_image.src.length-4);
		if(test_char1!='.' && test_char2!='.')
			test_imce_image.style.display='none';
	}
		
}