These JS code are some code that is often used in the form, most of the code is also written in regular expressions! // Go to left space; function ltrim (s) {return s.replace (/ ^ / s * /, "");} // go to right space; function rtrim (s) {return s.Replace (// s * $ /, ");} // left and right spaces; Function Trim (s) {RTURN RTRIM (LTRIM (S));} // is empty value; function isempty (_STR) {var TMP_STR = Trim (_str); returnTMP_STR.LENGTH == 0;}} // is effective Email; function ismail (_str) {Var tmp_str = trim (_str); var pattern = /^ [_a-z0-9-] (.[A-Z0-9-] ) *@[a-z0-9-] ( [[) -z0-9 -] ) * $ /; return pattern.test (tmp_str);} // is valid; function isnumber (_str) {var TMP_STR = Trim (_str); var pattern = / ^ [0- 9] /; return pattern;}} // is a valid color value; function iscolor (color) {var temp = color; if (temp == ") Return True; if (Temp.length! = 7) Return False; return (Temp.Search (// # [A-FA-F0-9] {6} /)! = -1);} // Is a valid link; Function Isurl (URL) {var Stemp VAR B = true; step = url.substring (0, 7); STEMP = STEMP.TOUPPERCASE (); if ((STEMP! = "Http: //") || (Url.Length <10)) {B = false;} RETURN B;} // Is there a valid mobile phone number; function ismobile (_str) {var TMP_ST R = trim (_STR); var pattern = / 13 / d {9} /; returnction.test (tmp_str);} http://www.imting.com/puterjam/blogview.asp?logid=180&cateID=1
