$(document).ready(function() { 	
	$(".text img").each(function (i) {        	
			var src = $(this).attr("src");        	
			var ext = "jpg";         
			if  (src.indexOf(ext) == -1) {
				$(this).attr("src",src);}	
			else{
				var src_new = '/watermark.php?src=/'+src;
				$(this).attr("src",src_new);
			}
		})
	});