//mchoice.js

//Javascript zur multiplecoice-Geschichte

//

function check_this_out(input)

{

	var i=0;

	switch(input)

	{

		case 1: del_opt(); del_toggle(); make_default(1); init_toggle(1); break;

		case 2: del_opt(); del_toggle(); make_default(2); init_toggle(2); break;

		case 3: del_opt(); del_toggle(); make_default(3); init_toggle(3); break;

		default: break;

	}

}

function init_country(country)

{

	var pos = -1;

	var i;

	for(i=0; i<document.myform.user3.length;i++) if(document.myform.user3.options[i].text == country) pos = i;

	if(pos!=-1) document.myform.user3.options[pos].selected = true;

}

function del_opt()

{

	var i, cnt;

	cnt = document.myform.user4.length;

	for(i=cnt; i>0; i--) document.myform.user4.options[i-1] = null;

}

function del_toggle()

{

	var i=0;

	for(i=0; i<toggle.length; i++) toggle[i] = null;

}

/************************************************************/

/*	Toggle Array initialisieren..., d. h. Selektion erst	*/

/*	einmal auf "false" setzen								*/

/************************************************************/

function init_toggle(input)

{

	var i, cnt;

	switch(input)

	{

		case 1: cnt = text1.length; break;

		case 2: cnt = text2.length; break;

		case 3: cnt = text3.length; break;

		default: break;

	}

	for(i=0; i<cnt; i++) toggle[i] = false;

	document.myform.user4.options[0].selected = false;

}

function make_default(input)

{

	var opt, i;

	switch(input)

	{

		case 1:	for(i=0; i<text1.length;i++)

				{

					opt = new Option(text1[i],text1[i],false, false);

					document.myform.user4.options[document.myform.user4.length] = opt;

					document.myform.user4.options[0].selected=true;

				}

				break;

		case 2:	for(i=0; i<text2.length;i++)

				{

					opt = new Option(text2[i],text2[i],false, false);

					document.myform.user4.options[document.myform.user4.length] = opt;

					document.myform.user4.options[0].selected=true;

				}

				break;

		case 3:	for(i=0; i<text3.length;i++)

				{

					opt = new Option(text3[i],text3[i],false, false);

					document.myform.user4.options[document.myform.user4.length] = opt;

					document.myform.user4.options[0].selected=true;

				}

				break;

				

		default: break;

	}

}



function ohne_dbl()

{

	var i=0;

	for(i=0;i<document.myform.user4.length;i++)

	{

		if(document.myform.user4.options[i].selected) toggle[i] = true;

	}



}

function dbl_selection()

{

	if((!(is.mac && is.ie)) && (!(is.unix && is.mozilla)))

	{

		//alert(navigator.userAgent);

		var i, sel;

		document.myform.user1.focus();

		sel = document.myform.user4.selectedIndex;

		if(document.myform.user4.options[sel].value == "") document.myform.user4.options[sel].selected = false;

		else

		{ 

			for(i=0; i<document.myform.user4.length; i++)

			{

				if(document.myform.user4.options[i].selected == toggle[i])

				{

					if(sel == i)

					{

						if(toggle[i] == true) toggle[i] = false;

						else toggle[i] = true;		

					}			

				}

				else

				{

					if(sel == i)

					{

						if(toggle[i] == true) toggle[i] = false;

						else toggle[i] = true;

					}

				}

			}

		}

		for(i=0; i<document.myform.user4.length; i++) document.myform.user4.options[i].selected = toggle[i];

		document.myform.user4.focus();

	}

}

function dothat()

{

	var i;

	ohne_dbl();

	for(i=0;i<toggle.length;i++)

	{

		if(toggle[i]) document.myform.user4.value+= document.myform.user4.options[i].text + "  ";

	}

}