ea_ = new Rollover("ea","./img/ea_0.gif","./img/ea_1.gif","document.layers['Lcontent'].document");
eb_ = new Rollover("eb","./img/eb_0.gif","./img/eb_1.gif","document.layers['Lcontent'].document"); 
ec_ = new Rollover("ec","./img/ec_0.gif","./img/ec_1.gif","document.layers['Lcontent'].document");
ed_ = new Rollover("ed","./img/ed_0.gif","./img/ed_1.gif","document.layers['Lcontent'].document");