function setClass_1(cls) { 
document.getElementById("hide_1").className=cls; 
}
function setClass_2(cls) { 
document.getElementById("hide_2").className=cls;
}
function setClass_3(cls) { 
document.getElementById("hide_3").className=cls; 
}
function setClass_4(cls) { 
document.getElementById("hide_4").className=cls; 
}
function setClass_5(cls) { 
document.getElementById("hide_5").className=cls; 
}
function setClass_6(cls) { 
document.getElementById("hide_6").className=cls; 
}
function setClass_7(cls) { 
document.getElementById("hide_7").className=cls; 
}