// onload event coupler
function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') { 
    window.onload = func;
  } else {
    window.onload = function() {
      oldonload();
      func();
    }
  }
}



addLoadEvent(function() {
  initRollover();
});
	


/* remove or fill textinputs with a basevalue on focus/blur */
function cleanField(fieldObj){
		fieldId = document.getElementById(fieldObj);
		var baseValue = fieldId.getAttribute('basevalue');
		if(fieldId.value == baseValue){
			fieldId.value = '';
		}else if(fieldId.value == ''){
			fieldId.value = baseValue;
		}else{
			return false;
		}		
	}
	
	
function checkInput(fieldObj){

	var fieldId =  document.getElementById(fieldObj);
	var baseValue = fieldId.getAttribute('basevalue');
	var bttn = document.getElementById(fieldId.id + 'submit');

	if((fieldId.value=='') || (fieldId.value==' ') || (fieldId.value==baseValue)){
		bttn.setAttribute('disabled', true);
		bttn.setAttribute('class', 'disab');
		bttn.setAttribute('className', 'disab');
		bttn.style.cursor = "default";
		
	}else{
		bttn.removeAttribute('disabled');
		bttn.setAttribute('class', 'submitbttn');
		bttn.setAttribute('className', 'submitbttn');
		bttn.style.cursor = 'pointer';
	}
}