// JavaScript Document
<!--
function setColorBack() {
        var whiteColor = "#FFFFFF";
	document.form1.size.style.backgroundColor = whiteColor;
        document.form1.size.value= "";
}

function setColor(formName, bgColor) {
	if (formName.style) formName.style.backgroundColor = bgColor;
}

function doCheck() {
   	var errorMSG = "Atencion: \n";
        // Tire size patterns that needs to be followed
	
	var pattern1 =/d[a-z]+n/;
	var choice = document.form1.size.value;
    if (pattern.test(choice) || pattern1.test(choice) || pattern2.test(choice) || pattern3.test(choice) || pattern4.test(choice) || pattern5.test(choice) || pattern6.test(choice))
    {
        return true;
    }
    else
    {
        alert(errorMSG + " Introducir medidas con su respectivo formato.\n Siga estos ejemplos: \n 1856014\n 1558013 \n 31105015 \n 31580225 \n 1956515");
        setColor(document.form1.size, "#FFCC66");
        return false;
    }

}

//-->