function ResetImages(){ jQuery('.mainImage').css({'display':'none'}); } function ShowImage(strImgRef){ jQuery('#'+strImgRef).css({'display':'block'}); } jQuery(document).ready(function(){ ResetImages(); ShowImage(jQuery('#gPhotoIndex div:first').attr('id')); jQuery('.thumbStyle').bind('mouseover', function(){ var cIMg = jQuery(this).attr('id'); var gNimg = cIMg.replace(/gThumb/i,'gIndex'); ResetImages(); ShowImage(gNimg); }); });