// JavaScript Document

//This function email format to be entered in Text box
function isemail(m) {
	len=m.length;
	i=0;
	// Checking for "@" in the address
	while((i<len) && (m.charAt(i)!="@"))
		i++;
	if((i>=len) || (m.charAt(i)!="@")) return(false);
		i+=2;
	// Checking for "." in the address
	while((i<len) && (m.charAt(i)!="."))
		i++;
	if((i>len-1) || (m.charAt(i)!=".")) return(false);
		return(true)
}

// Start: Trim Function 
function Trim(STRING){
	STRING = LTrim(STRING);
	return RTrim(STRING);
}
	 
function RTrim(STRING){
	while(STRING.charAt((STRING.length -1))==" "){
		STRING = STRING.substring(0,STRING.length-1);
	}
	return STRING;
}
 

function LTrim(STRING){
	while(STRING.charAt(0)==" "){
		STRING = STRING.replace(STRING.charAt(0),"");
	}
	return STRING;
}

//verify form details
function verify(ptr){
	
	if(Trim(ptr.txtfullname.value) == "") {
		alert("Please fill Name to continue.");
		ptr.txtfullname.focus();
		return false;
	}
	
	if(Trim(ptr.txtemailaddr.value) == "") {
		alert("Please fill Email Addr to continue.");
		ptr.txtemailaddr.focus();
		return false;
	}
	
	if(!isemail(ptr.txtemailaddr.value)) {
		alert("Please fill proper Email Addr to continue.");
		ptr.txtemailaddr.focus();
		return false;
	}
		
	if(Trim(ptr.txtdate.value) == "") {
		alert("Please fill Date to continue.");
		ptr.txtdate.focus();
		return false;
	}
	
}