// (w) 2008 bommer für downstairs. 
// Für alle Elemente mit Class CLK: onClick -> Class "current", onBlur -> remove
// v2

function setCLKobservers() {
	 $$('.clk').each(function(s) { 

		// Überwache "click" event auf Element
		Event.observe (s,"click",function() { 
		
				// Fokus für das INPUT element, das erste Kind
					if (s.down(1).type == "text" && s.down(1).readOnly == false) {  s.down(1).focus(); }
					
				} 
			);

		// wenn "focus" event auf Kind -> Class "current" für Elternelement
		Event.observe (s.down(1),"focus", function() { if (s.down(1).readOnly == false) Element.addClassName(s, 'current');});
		
		// wenn "blur" event auf Kind -> lösche Class "current"
		Event.observe (s.down(1),"blur", function() {  Element.removeClassName(s, 'current');});

});
}

var inputs;
var imgFalse = 'gfx/site/false.gif';
var imgTrue = 'gfx/site/true.gif';

// alle Checkboxen der Klasse chk anhübschen

function replaceCheckboxes() {
    
    //get all the input fields on the page
    inputs = $$('.chk'); 
	
    //cycle trough the input fields
    for(var i=0; i < inputs.length; i++) {

        //check if the input is a checkbox
        if(inputs[i].getAttribute('type') == 'checkbox') {
            
            //create a new image
            var img = document.createElement('img');
            Element.addClassName(img, 'myCheckbox');
			
            //check if the checkbox is checked
            if(inputs[i].checked) {
                img.src = imgTrue;
            } else {
                img.src = imgFalse;
            }

            //set image ID and onclick action
            img.id = 'checkImage'+i;
            //set image
            img.onclick = new Function('checkChange('+i+')');
            //place image in front of the checkbox
            inputs[i].parentNode.insertBefore(img, inputs[i]);
            
            //hide the checkbox
            inputs[i].style.display='none';
        }
    }
}

//change the checkbox status and the replacement image
function checkChange(i) {

    if(inputs[i].checked) {
        inputs[i].checked = '';
        document.getElementById('checkImage'+i).src=imgFalse;
    } else {
        inputs[i].checked = 'checked';
        document.getElementById('checkImage'+i).src=imgTrue;
    }
}