var DHTML = 0, DOM = 0, MS = 0, NS = 0, OP = 0;

function dInit() {
	if (window.opera) {
		OP = 1;
	}
	if(document.getElementById) {
		DHTML = 1;
		DOM = 1;
	}
	if(document.all && !OP) {
		DHTML = 1;
		MS = 1;
	}
	if (window.netscape && window.screen && !DOM && !OP){
		DHTML = 1;
		NS = 1;
	}
}

function selectNumber() {
	if (DOM) {
		document.getElementById("page").select();
	} else if (MS) {
		document.all['page'].select();
	} else if (NS) {
		document['page'].select();
	}
}

function createField() {
	document.write('<input type="button" name="1" value="1" onClick="setPageNumber(\'1\');"><input type="button" name="2" value="2" onClick="setPageNumber(\'2\');"><input type="button" name="3" value="3" onClick="setPageNumber(\'3\');"><br /><input type="button" name="4" value="4" onClick="setPageNumber(\'4\');"><input type="button" name="5" value="5" onClick="setPageNumber(\'5\');"><input type="button" name="6" value="6" onClick="setPageNumber(\'6\');"><br /><input type="button" name="7" value="7" onClick="setPageNumber(\'7\');"><input type="button" name="8" value="8" onClick="setPageNumber(\'8\');"><input type="button" name="9" value="9" onClick="setPageNumber(\'9\');"><br /><input type="button" name="a" value=""><input type="button" name="0" value="0" onClick="setPageNumber(\'0\');"><input type="button" name="b" value="">');
}

function setPageNumber(zahl) {
	if (DOM) {
		if (document.getElementById("page").value.length < 3) {
			document.getElementById("page").value += zahl;
		} else {
			document.getElementById("page").value = zahl;
		}
	} else if (MS) {
		if (document.all['page'].value.length < 3) {
			document.all['page'].value += zahl;
		} else {
			document.all['page'].value = zahl;
		}
	} else if (NS) {
		if (document['page'].value.length < 3) {
			document['page'].value += zahl;
		} else {
			document['page'].value = zahl;
		}
	}
	selectNumber();
}
function callPage() {
	var page = 100;
	if (DOM) {
		page = document.getElementById("page").value;
	} else if (MS) {
		page = document.all['page'].value;
	} else if (NS) {
		page = document['page'].value;
	} else {
		return true;
	}
	if (page.length == 1) {
		page += 00;
	} else if (page.length == 2) {
		page += 0;
	}
	window.location.href = "http://www.sr-online.de/vttest/" + page + "-01.html";
	return false;
}