function remove_newlines(inputString) {
	rExp = /\r\n|\r/g;
	result = inputString.replace(rExp, " ");
	return result;
}
function trim_spaces(inputString) {
	if (typeof inputString != "string") {
		return inputString;
	}
	var retValue = inputString;
	var ch = retValue.substring(0, 1);
	while (ch == " ") { 
		retValue = retValue.substring(1, retValue.length);
		ch = retValue.substring(0, 1);
	}
	ch = retValue.substring(retValue.length-1, retValue.length);
	while (ch == " ") { 
		retValue = retValue.substring(0, retValue.length-1);
		ch = retValue.substring(retValue.length-1, retValue.length);
	}
	while (retValue.indexOf("  ") != -1) { 
		retValue = retValue.substring(0, retValue.indexOf("  ")) + retValue.substring(retValue.indexOf("  ")+1, retValue.length); 
	}
	return retValue; 
}
function remove_newlines_and_trim_spaces(inputString) {
	if (typeof inputString != "string") {
		rExp = /\r\n|\r/g;
		result = inputString.replace(rExp, " ");
		return result;
	}
	var retValue = inputString;
	var ch = retValue.substring(0, 1);
	while (ch == " ") { 
		retValue = retValue.substring(1, retValue.length);
		ch = retValue.substring(0, 1);
	}
	ch = retValue.substring(retValue.length-1, retValue.length);
	while (ch == " ") { 
		retValue = retValue.substring(0, retValue.length-1);
		ch = retValue.substring(retValue.length-1, retValue.length);
	}
	while (retValue.indexOf("  ") != -1) { 
		retValue = retValue.substring(0, retValue.indexOf("  ")) + retValue.substring(retValue.indexOf("  ")+1, retValue.length); 
	}
	rExp = /\r\n|\r/g;
	result = retValue.replace(rExp, " ");
	return result; 
}
function check_email(inputString)
{
	var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
	if (!filter.test(inputString)) {
		return false;
	}
	return true;
}
function check_digit(inputString) {
	isPrice = /^\d+\.{0,1}\d*$/;
	return isPrice.test(inputString);
}


function check_currency(inputString) {
	isCurrency = /^\$\d+\.{0,1}\d*$/;
	return isCurrency.test(inputString);
}
function check_word_only(inputString) {
	isAlphaNumeric = /^[A-Za-z0-9]*$/;
	return isAlphaNumeric.test(inputString);
}
function validate_form() {

	validation_errors = "";
	
	if(document.getElementById("question_2").value.length == 0) {
		validation_errors += "- Please enter your name\n";
	}
	
	temp = document.getElementById("question_2").name;
	temp2 = eval("trim_spaces(document.main_form."+temp+".value)");
	temp3 = eval("document.main_form."+temp);
	temp3.value = temp2;
	
	temp = document.getElementById("question_3").name;
	temp2 = eval("trim_spaces(document.main_form."+temp+".value)");
	temp3 = eval("document.main_form."+temp);
	temp3.value = temp2;
	
	if(document.getElementById("question_4").value.length == 0) {
		validation_errors += "- Please enter your address\n";
	}
	
	temp = document.getElementById("question_4").name;
	temp2 = eval("remove_newlines_and_trim_spaces(document.main_form."+temp+".value)");
	temp3 = eval("document.main_form."+temp);
	temp3.value = temp2;
	
	if(document.getElementById("question_5").value.length == 0) {
		validation_errors += "- Please enter your address\n";
	}
	
	temp = document.getElementById("question_5").name;
	temp2 = eval("trim_spaces(document.main_form."+temp+".value)");
	temp3 = eval("document.main_form."+temp);
	temp3.value = temp2;
	
	if(document.getElementById("question_6").value.length == 0) {
		validation_errors += "- Please enter your postcode\n";
	}
	
	temp = document.getElementById("question_6").name;
	temp2 = eval("trim_spaces(document.main_form."+temp+".value)");
	temp3 = eval("document.main_form."+temp);
	temp3.value = temp2;
	
	if(document.getElementById("question_7").value.length == 0) {
		validation_errors += "- Please enter your country\n";
	}
	
	temp = document.getElementById("question_7").name;
	temp2 = eval("trim_spaces(document.main_form."+temp+".value)");
	temp3 = eval("document.main_form."+temp);
	temp3.value = temp2;
	
	if(document.getElementById("question_1").value.length == 0) {
		validation_errors += "- Please enter your email address\n";
	}
	
	temp = document.getElementById("question_1").name;
	if(eval("check_email(document.main_form."+temp+".value)") == false) {
		validation_errors += "- Please enter a valid email address\n";
	}
	
	temp = document.getElementById("question_1").name;
	temp2 = eval("remove_newlines_and_trim_spaces(document.main_form."+temp+".value)");
	temp3 = eval("document.main_form."+temp);
	temp3.value = temp2;
	
	temp = document.getElementById("question_8").name;
	temp2 = eval("trim_spaces(document.main_form."+temp+".value)");
	temp3 = eval("document.main_form."+temp);
	temp3.value = temp2;
	
	temp = document.getElementById("question_9").name;
	temp2 = eval("trim_spaces(document.main_form."+temp+".value)");
	temp3 = eval("document.main_form."+temp);
	temp3.value = temp2;
	
	temp = document.getElementById("question_10").name;
	temp2 = eval("trim_spaces(document.main_form."+temp+".value)");
	temp3 = eval("document.main_form."+temp);
	temp3.value = temp2;
	
	temp = document.getElementById("question_13").name;
	temp2 = eval("remove_newlines_and_trim_spaces(document.main_form."+temp+".value)");
	temp3 = eval("document.main_form."+temp);
	temp3.value = temp2;
	
	if (validation_errors != "") {
		alert("The following errors were encountered while attempting to submit your enquiry:\n"+validation_errors);
		return false;
	} else {
		document.main_form.submit();
	}
}