<!--

function enable(id, b) {
   if (b) {	  
     document.getElementById(id).disabled = false;     
   }
   else {   	
     document.getElementById(id).disabled = true;                    
   }   
}

function check_select(sAlert, select2) {
    if (document.getElementById(select2).value == "-1") 	{
       alert(sAlert);        
       return false;
    }
   	else return true;
}


function check_select_for_rent(sAlert, select2, id) {
	if (document.getElementById(id).value == '') {
    if (document.getElementById(select2).value == "-1") 	{
       alert(sAlert);        
       return false;
    }
   	else return true;
	}
}

//-->