var topcolor='#cbcbcb';
var setread='readOnly';
var topheight='60px';
var topfilter='informativa';

function set_height(myheight)
{
   document.getElementById(topfilter).style.height=myheight;
}

function setreadonly(myreadonly)
{
   document.getElementById(topfilter).readOnly=myreadonly;
}

function set_color(mycolor)
{
   document.getElementById(topfilter).style.color=mycolor;
}

function set_parameter()
{
   set_color(topcolor);
   setreadonly(setread);
   set_height(topheight);
}

function set_informativa()
{
	 if(document.getElementById(topfilter))
	  {
	    set_parameter();
	  }
}