function trim(strin, advancedtrim) {
/* nathanr: trim function for ecmascript, add in second param of true to trim all known spaces */
strin = strin.replace(/^s+|s+$/g, ''); //STANDARD

REGEX

  whitespace
if(advancedtrim) {
strin = strin.replace(/^[su0020]+|[su0020]+$/g, ''); //SPACE
strin = strin.replace(/^[su00A0]+|[su00A0]+$/g, ''); //NO-BREAK SPACE
strin = strin.replace(/^[su1361]+|[su1361]+$/g, ''); //ETHIOPIC WORDSPACE
strin = strin.replace(/^[su1680]+|[su1680]+$/g, ''); //OGHAM SPACE MARK
strin = strin.replace(/^[su2002]+|[su2002]+$/g, ''); //EN SPACE
strin = strin.replace(/^[su2003]+|[su2003]+$/g, ''); //EM SPACE
strin = strin.replace(/^[su2004]+|[su2004]+$/g, ''); //THREE-PER-EM SPACE
strin = strin.replace(/^[su2005]+|[su2005]+$/g, ''); //FOUR-PER-EM SPACE
strin = strin.replace(/^[su2006]+|[su2006]+$/g, ''); //SIX-PER-EM SPACE
strin = strin.replace(/^[su2007]+|[su2007]+$/g, ''); //FIGURE SPACE
strin = strin.replace(/^[su2008]+|[su2008]+$/g, ''); //PUNCTUATION SPACE
strin = strin.replace(/^[su2009]+|[su2009]+$/g, ''); //THIN SPACE
strin = strin.replace(/^[su200A]+|[su200A]+$/g, ''); //HAIR SPACE
strin = strin.replace(/^[su200B]+|[su200B]+$/g, ''); //ZERO WIDTH SPACE
strin = strin.replace(/^[su202F]+|[su202F]+$/g, ''); //NARROW NO-BREAK SPACE
strin = strin.replace(/^[su205F]+|[su205F]+$/g, ''); //MEDIUM MATHEMATICAL SPACE
strin = strin.replace(/^[su2408]+|[su2408]+$/g, ''); //BACKSPACE SYMBOL
strin = strin.replace(/^[su2420]+|[su2420]+$/g, ''); //SYMBOL FOR SPACE
strin = strin.replace(/^[su3000]+|[su3000]+$/g, ''); //IDEOGRAPHIC SPACE
strin = strin.replace(/^[su303F]+|[su303F]+$/g, ''); //IDEOGRAPHIC HALF FILL SPACE
}
return strin;
}