tab1_off=defineImg(imageRoot+"images/tabs/tab1_off.jpg");tab1_over=defineImg(imageRoot+"images/tabs/tab1_over.jpg");tab1_on=defineImg(imageRoot+"images/tabs/tab1_on.jpg");tab2_off=defineImg(imageRoot+"images/tabs/tab2_off.jpg");tab2_over=defineImg(imageRoot+"images/tabs/tab2_over.jpg");tab2_on=defineImg(imageRoot+"images/tabs/tab2_on.jpg");tab3_off=defineImg(imageRoot+"images/tabs/tab3_off.jpg");tab3_over=defineImg(imageRoot+"images/tabs/tab3_over.jpg");tab3_on=defineImg(imageRoot+"images/tabs/tab3_on.jpg");tab4_off=defineImg(imageRoot+"images/tabs/tab4_off.jpg");tab4_over=defineImg(imageRoot+"images/tabs/tab4_over.jpg");tab4_on=defineImg(imageRoot+"images/tabs/tab4_on.jpg");var pressedItem="tab1";function defineImg(a){var b=new Image();b.src=a;return b}function toggle(id){x=id.split("_");menuId=x[0];action=x[1];if(pressedItem==menuId&&(action=="off"||action=="over")){return}if(action=="on"){if(pressedItem!=-1){document[pressedItem].src=eval(pressedItem+"_off.src")}pressedItem=menuId}document[menuId].src=eval(id+".src")}if(pressedItem!=-1){toggle(pressedItem+"_on")};