// File JScript

//global variables that can be used by ALL the function son this page.
var inputs;
var imgFalse   = '/images/false.png';
var imgTrue    = '/images/true.png';
var imgDisable = '/images/disable.png';

//this function runs when the page is loaded, put all your other onload stuff in here too.
function initChecks(Path) {
    imgFalse   = Path + imgFalse;
    imgTrue    = Path + imgTrue;
    imgDisable = Path + imgDisable;
	replaceChecks();
}

function replaceChecks() {
	
	//get all the input fields on the page
	inputs = document.getElementsByTagName('input');

	//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') && (inputs[i].style.display == '')) {
			
			//create a new image
			var img = document.createElement('img');
			
			//check if the checkbox is checked
			if(inputs[i].disabled) {
                img.src = imgDisable;
			} else {
                if(inputs[i].checked) {
				    img.src = imgTrue;
			    } else {
				    img.src = imgFalse;
			    }
                //set image
                img.onclick = new Function('checkChange('+i+')');
            }

			//set image ID and onclick action
			img.id = 'checkImage'+i;
			img.height = '13';
			img.width = '13';
			
			//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 = false;
		document.getElementById('checkImage'+i).src = imgFalse;		
	} 
	else {
		inputs[i].checked = true;
		document.getElementById('checkImage'+i).src = imgTrue;		
	}
	
	if (inputs[i].onclick != null) {
	    inputs[i].onclick();
	}
}