// JavaScript Document

function isNum(str) 
{
        // Return false if characters are not '0-9' or '.' .
        for (var i = 0; i < str.length; i++)
        {
                var ch = str.substring(i, i + 1);
                if ((ch < "0" || "9" < ch) && ch != '.' && ch != '-')
                {
                        return 1;
                }
        }
        return 0;
}


function isEmail(val)
{
      // Return false if e-mail field does not contain a '@' and '.' .
        if (val.indexOf ('@',0) == -1 || val.indexOf ('.',0) == -1)
        {
                return 1;
        }
        else
        {
                return 0;
        }
		
}

function isSTR(val){
        var str = val;
        // Return false if characters are not a-z, A-Z, or a space.
        for (var i = 0; i < str.length; i++){
                var ch = str.substring(i, i + 1);
                if (((ch < "a" || "z" < ch) && (ch < "A" || "Z" < ch)) && ch != ' '){
                return 1;
                }
        }
        return 0;
}


function js_signup()
{
	
		var fta_NAME=document.contactform.NAME.value; 
		var fta_EMAILID=document.contactform.EMAILID.value; 
		var fta_purpose=document.contactform.purpose.value;
		var fta_message=document.contactform.message.value;
		var error_message="There are following errors while Processing :\n";
		var error=0;
	 


if((fta_NAME=="") || (fta_NAME.length<3)) { 
	 	error_message=error_message+"Please enter your name\n";
		      error = 1;
 }
 if(isSTR(fta_NAME)) { 
	 	error_message=error_message+"Please enter your name in characters\n";
		      error = 1;
 }
 
 if (fta_EMAILID == "" ||  isEmail(fta_EMAILID)) {
                error_message = error_message + "Enter the correct email address\n";
                error = 1;
 }	
 
 if((fta_purpose=="") || (fta_purpose.length<3) )
{
	error_message=error_message+"Please enter Your purpose of Contact. \n";
	  error = 1;
}
			  
if((fta_message=="") || (fta_message.length<3)) { 
	 	error_message=error_message+"Please enter comments or message\n";
		      error = 1;
 }
 if(isSTR(fta_message)) { 
	 	error_message=error_message+"Please enter your ccomments or message in characters\n";
		      error = 1;
 }
 
 if (error == 1)
	    {
				alert(error_message);
                return false;
        } 
		else {
                return true;
        }
		
}