function $(id)
{
 return document.getElementById(id);
}
function navigationbtnoneover(obj){
   
    var spans = obj.childNodes;
   
    if( spans[0].innerHTML.length == 2){
        obj.className = "navigation_btn3";
    }else{
         obj.className = "navigation_btn1";
    }
    
}
function navigationbtnoneout(obj){
    var spans = obj.childNodes;
    if( spans[0].innerHTML.length == 2){
        obj.className = "navigation_btn1";
    }else{
         obj.className = "navigation_btn3";
    }
}

function navigationbtntwoover(obj){
   
    var spans = obj.childNodes;
   
    if( spans[0].innerHTML.length == 2){
        obj.className = "navigation_btn4";
    }else{
         obj.className = "navigation_btn1";
    }
    
}
function navigationbtntwoout(obj){
    var spans = obj.childNodes;
    if( spans[0].innerHTML.length == 2){
        obj.className = "navigation_btn1";
    }else{
         obj.className = "navigation_btn4";
    }
}

function navigationbtnthreeover(obj){
   
    var spans = obj.childNodes;
   
    if( spans[0].innerHTML.length == 2){
        obj.className = "navigation_btn2";
    }else{
         obj.className = "navigation_btn1";
    }
    
}
function navigationbtnthreeout(obj){
    var spans = obj.childNodes;
    if( spans[0].innerHTML.length == 2){
        obj.className = "navigation_btn1";
    }else{
         obj.className = "navigation_btn2";
    }
}




function navigationbtntxtover(obj){
   
    var spans = obj.childNodes;

    if( spans[0].innerHTML.length == 2){
		
        obj.className = "navigation_btn_txt2";
    }else{
         obj.className = "navigation_btn_txt1";
    }
   
}
function navigationbtntxtout(obj){
    var spans = obj.childNodes;
    if( spans[0].innerHTML.length == 2){
        obj.className = "navigation_btn_txt1";
    }else{
         obj.className = "navigation_btn_txt2";
    }
}