/**
 * JavaScript Selector
 * modified from saw_selector.js by zyoung on 26-sept-07
 */
 
function resetAll() {
	clearRadioValue(document.selectorForm.q1);
	clearRadioValue(document.selectorForm.q2);
	clearRadioValue(document.selectorForm.q3);	
	processSelections();
}


function printRecs() {
    window.print();
}

function parseQueryString (str) {
	str = str ? str : location.search;
	var query = str.charAt(0) == '?' ? str.substring(1) : str;
	var args = new Object();
	if (query) {
		var fields = query.split('&');
		for (var f = 0; f < fields.length; f++) {
			var field = fields[f].split('=');
			args[unescape(field[0].replace(/\+/g, ' '))] = unescape(field[1].replace(/\+/g, ' '));
		}
	}
	return args;
}

function processSelections() {
	
	var results = Array();
		
	/* default results */
	results[0] = [1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1];
	results[1] = [1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1];
	results[2] = [1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1];

	var idx;
	var idx1;
	var idx2;
	var questions = 3;
	var items = 30;
	var count = 0;

	/* get form input */
	var q1 = getRadioValue(document.selectorForm.q1);
	var q2 = getRadioValue(document.selectorForm.q2);
	var q3 = getRadioValue(document.selectorForm.q3);

	if (q1 != 'undefined') {
	    if (q1 == 'a') {
	        results[0] = [1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1];
	    } else if (q1 == 'b') {
	        results[0] = [0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,1,1,1];
	    } else if (q1 == 'c') {
	        results[0] = [0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,1,1];
	    }
	}
	if (q2 != 'undefined') {
	    if (q2 == 'a') {
	        results[1] = [1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,1,1,1,1,1];
	    } else if (q2 == 'b') {
	        results[1] = [0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,1,1];
	    } else if (q2 == 'c') {
	        results[1] = [0,0,0,0,0,0,1,1,1,0,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,1,1];
	    } else if (q2 == 'd') {
	        results[1] = [0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,0,0,0,0,0,1,1];
	    } else if (q2 == 'e') {
	        results[1] = [0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,0,0,0,0,1];
	    } else if (q2 == 'f') {
	        results[1] = [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,0,0,0,0,0];
	    } else if (q2 == 'g') {
	        results[1] = [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,0,0,0,0,0];
	    }
	}
	if (q3 != 'undefined') {
	    if (q3 == 'a') {
	        results[2] = [1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1];
	    } else if (q3 == 'b') {
	        results[2] = [0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1];
	    } else if (q3 == 'c') {
	        results[2] = [0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,1,1,1];
	    } else if (q3 == 'd') {
	        results[2] = [0,0,0,0,0,0,0,0,1,0,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,1,1];
	    } else if (q3 == 'e') {
	        results[2] = [0,0,0,0,0,0,0,0,1,0,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,1,1];
	    }
	}
	
	selections = [1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1];
	
	for( idx1 = 0; idx1 < questions; idx1++ ) {
		for ( idx2 = 0; idx2 < items; idx2++ ) {
			if( results[idx1][idx2] == 0 ) {
				selections[idx2] = 0;
			}
		}
	}

	var count = 0;
	for ( idx = 0; idx < items; idx++) {
		if (selections[ idx ] == 1) {
			count++;
		}
	}

	document.getElementById("matchNum").innerHTML = count;
	for( var idx = 1; idx <= items; idx++ ) {
		var stridx = String( idx );
		if( selections[ idx - 1 ] == 1 ) { 
			document.getElementById( stridx ).style.display = 'block';
		} else {
			document.getElementById( stridx ).style.display = 'none';
		}
	}
}

function setRadioValue(radioElement, value) {
	for (var i=0; i < radioElement.length; i++) {
		if (radioElement[i].value == value) {
			radioElement[i].checked = true;
			return;
		}
	}
}

function getRadioValue(radioElement) {
	for (var i=0; i < radioElement.length; i++) {
		if (radioElement[i].checked) {
			return radioElement[i].value;
		}
	}
	return 'undefined';
}

function clearRadioValue(radioElement) {
	for (var i=0; i < radioElement.length; i++) {
		if (radioElement[i].checked) {
			radioElement[i].checked = false;
		}
	}
}