Syntax string .substr(start,length) Parameter Description start Required. The index where to start the extraction. First character is at index 0 length Optional. The number of characters to extract. If omitted, it extracts the rest of the string Example Example Extract characters from …

put this line wherever u needed to do this. var string = (new XMLSerializer()).serializeToString(xmlDoc);

//------------- load a string into dom -------- //@param: string to be loaded //@return: xml dom document function dom_load(string) { //alert("dom_load"); if (window.DOMParser)   {   parser=new DOMParser();   xmlDoc=parser.parseFromString(string,"text/xml");  …

//--------- to get angle between two points --------- //---param--- //@x1,x2,y1,y2 : cordinates of 2 points //@return: theta(value in degrees) function getTanTheta(x1,y1,x2,y2) { var y = eval(y2)-eval(y1); var x = eval(x2)-eval(x1); if(y < 0) { y = -y;} if(x < 0) { x = -x;} //…

//------- Rounding in javascript -------- //@param: Number, length to round //@return: Rounded number function roundNumber(rnum, rlength)  { // Arguments: number to round, number of decimal places var newnumber = Math.round(rnum*Math.pow(10,rlength))/Math.pow(10,rlength); newNumb…

Just make a variable as given below and that's it. $our_url ='http'.((!empty($_SERVER['HTTPS']))?'s':'').'://'.$_SERVER['SERVER_NAME'].$_SERVER['PHP_SELF'];

To reset dropdown/ or selectbox, we can simply fire this javascript code on any dom event document.getElementById("id_of_selectbox").selectedIndex = -1; The selectedIndex method of javascript will reset the index of the selected dropbox. Another and better optio…