var clsName = 'testar';
var vis = false;

document.getElementsByClassName = function(clsName){ 
    var retVal = new Array(); 
    var elements = document.getElementsByTagName("*"); 
    for(var i = 0;i < elements.length;i++){ 
        if(elements[i].className.indexOf(" ") >= 0){ 
            var classes = elements[i].className.split(" "); 
            for(var j = 0;j < classes.length;j++){ 
                if(classes[j] == clsName) 
                    retVal.push(elements[i]); 
            } 
        } 
        else if(elements[i].className == clsName) 
            retVal.push(elements[i]); 
    } 
    return retVal; 
} 

function doDisplay(ob){
	clsName = ob.className;
	if(vis == false){
		  var f = document.getElementsByClassName(clsName); 
		  for(var i = 0; i < f.length; i++) {
			//f[i].style.display = (f[i].style.display == 'none') ? 'block' : 'none'; 
			//f[i].style.visibility='hidden';
			//f[i].style.width='500px';
			f[i].style.borderBottom= '5px solid #ff0000';
		  }
		  vis = true;
	}
} 

function hideDisplay(ob){
	clsName = ob.className;
	if(vis == true){
  var f = document.getElementsByClassName(clsName); 
  for(var i = 0; i < f.length; i++) {
    //f[i].style.display = (f[i].style.display == 'none') ? 'block' : 'none'; 
	//f[i].style.visibility='hidden';
	//f[i].style.visibility='visible';
	//f[i].style.width='50px';
	f[i].style.borderBottom= '5px solid #ffffff';
  }
  vis = false;
	}
}

function doDisplayStatic(ob){
	clsName = ob;
	if(vis == false){
		  var f = document.getElementsByClassName(clsName); 
		  for(var i = 0; i < f.length; i++) {
			//f[i].style.display = (f[i].style.display == 'none') ? 'block' : 'none'; 
			//f[i].style.visibility='hidden';
			//f[i].style.width='500px';
			f[i].style.borderBottom= '5px solid #ff0000';
		  }
		  vis = true;
	}
} 

function hideDisplayStatic(ob){
	clsName = ob;
	if(vis == true){
  var f = document.getElementsByClassName(clsName); 
  for(var i = 0; i < f.length; i++) {
    //f[i].style.display = (f[i].style.display == 'none') ? 'block' : 'none'; 
	//f[i].style.visibility='hidden';
	//f[i].style.visibility='visible';
	//f[i].style.width='50px';
	f[i].style.borderBottom= '5px solid #ffffff';
  }
  vis = false;
	}
}