function browser() {
	var browser	= navigator.userAgent;
	
	if (browser.indexOf('Gecko')>-1) return "FF"; //Mozilla og Netscape
	else if (browser.indexOf('Opera')>-1) return "Opera"; //Opera
	else if (browser.indexOf('MSIE')>-1) return "IE"; //Internet Explorer
	else return false;
}

function str_replace(ch,nch,str){
    var chl = ch.length;
    var nchl = nch.length;
    var i = str.indexOf(ch);
    while(i>-1){
        str = str.substring(0,i)+nch+str.substring(i+chl);
        i = str.indexOf(ch,i+nchl);
    }
    return str;
}

function onhover(row,antal) {
	for(i=1;i<=antal;i++) {
		document.getElementById('row_' + row + '_' + i).style.backgroundColor = '#CCCCCC';
	}
}

function outhover(row,antal,color) {
	for(i=1;i<=antal;i++) {
		document.getElementById('row_' + row + '_' + i).style.backgroundColor = color;
	}
}