rep="/roll/";pref="ov_";function initRollover(){src1=src2=el=0;imageOver=[];D=document;im=D.getElementsByTagName("img");if(!im){return}for(var a=0;a<im.length;++a){if(im[a].src.indexOf(rep)!=-1&&im[a].src.indexOf(rep+pref)==-1){imageOver[a]=new Image();imageOver[a].src=im[a].src.replace(rep,rep+pref)}}addEvent(D,"mouseover",chg_img);addEvent(D,"mouseout",retabli_img)}function chg_img(a){el=a.target?a.target:event.srcElement;if(!el){return}if(!el.tagName){return}if((el.tagName=="IMG")&&el.src.indexOf(rep)!=-1&&el.src.indexOf(rep+pref)==-1){src1=el.src;el.src=el.src.replace(rep,rep+pref)}}function retabli_img(a){el=a.target?a.target:event.srcElement;if(!el){return}if(!el.tagName){return}if(src1&&(el.tagName=="IMG")&&el.src.indexOf(rep)!=-1&&el.src==src1.replace(rep,rep+pref)){el.src=src1}src1=0}function addEvent(d,c,b,a){if(d.addEventListener){d.addEventListener(c,b,a);return true}else{if(d.attachEvent){d.attachEvent("on"+c,b)}else{return false}}}addEvent(window,"load",initRollover);