function hov(loc,cls){
   if(loc.className)
      loc.className=cls;
	  }

function BorraPrimeraVez(txtID,hdnID)
{
    var oHdn = document.all(hdnID)
    var oTxt = document.all(txtID)    
    if (oHdn.value==1)
    {
        oHdn.value=0;
        oTxt.value="";
    }
    
}