function click_box_focus(myelement, mystring, mymethod){
	
		if(myelement.value == mystring)
			myelement.value = '';
}

function click_box_blur(myelement, mystring){
	
		if(myelement.value == '')
			myelement.value = mystring;
			
}

function changeimage(myelement, theimage){

	element = document.getElementById(myelement);
	
	if(element)
		element.src = theimage;

}

function changeusage(myelement, element1, element2, element3, element4){

	var value = "";

	if(myelement.checked)
		value = myelement.value;
	
	if(value == 'S'){
		hidediv(element2);
		showdiv(element1);
		hidediv(element4);
		showdiv(element3);
	} else {
		hidediv(element1);
		showdiv(element2);
		hidediv(element3);
		showdiv(element4);
	}

}

function hidediv(element) {
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(element).style.display = 'none';
	}
	else {
		if (document.layers) { // Netscape 4
			document.element.display = 'none';
		}
		else { // IE 4
			document.all.element.style.display = 'none';
		}
	}
}

function showdiv(element) {
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(element).style.display = 'block';
	}
	else {
		if (document.layers) { // Netscape 4
			document.element.display = 'block';
		}
		else { // IE 4
			document.all.element.style.display = 'block';
		}
	}
}

function swapimg(element, link) {
	document.getElementById(element).src=link;
}