function image_over(obj){var imgSrc=obj.src;if(document.getElementById('lastImageSelectedID').value!=''&&obj.id!=document.getElementById('lastImageSelectedID').value){var lastImgSrc=document.getElementById('lastImageSelectedSrc').value;var newImgSrc=lastImgSrc.replace(/_over(\.[a-z0-9]+)$/i,'$1');var lastImgID=document.getElementById('lastImageSelectedID').value;document.getElementById(lastImgID).src=newImgSrc;}if(document.getElementById('lastImageSelectedSrc').value!=imgSrc){var imgFileName=imgSrc.replace(/(\.[a-z0-9]+)$/i,'_over$1');var newImgSrc=imgFileName;obj.src=newImgSrc;document.getElementById('lastImageSelectedID').value=obj.id;document.getElementById('lastImageSelectedSrc').value=newImgSrc;}}