JS-Library/form validation example.txt at master · Rah1x/JS-Library · GitHub

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function check_req_frm()
{
    var err = '';


    if(document.getElementById('vr_cost').value=='')
    {
        err += 'Please enter the Cost of of Custom Verse !\r\n';
    }
    else if(document.getElementById('vr_cost').value.search(/^[0-9]{0,}[.]{0,1}[0-9]{0,}$/)<0)
    {
        err += 'The Cost of of Custom Verse can be numberic only [without space, comma, etc] !\r\n';
    }


    //check image
    <?php
    if($id==0)
    {
        ?>
        if(document.getElementById('gr_img').value=='')
        {
            err += 'Please select a Greeting Image !\r\n';
        }
        else if(!/(\.gif|\.jpg|\.jpeg|\.png)$/i.test(document.getElementById('gr_img').value))
        {
    	   err += 'The Greeting Image must be in JPG, GIF or PNG format !!\r\n';
        }
        <?php
    }
    else
    {
        ?>
        if((document.getElementById('page_header').value!='')  &&  (!/(\.gif|\.jpg|\.jpeg|\.png)$/i.test(document.getElementById('page_header').value)))
        {
    	   err += 'The Category Header/Banner must be in JPG, GIF or PNG format !!\r\n';
        }
        <?php
    }
    ?>
    //--


    //check Price-Quantity table
    var f2 = document.getElementById('f2');
    var qty = f2.elements['quantity[]'];
    var pri = f2.elements['price_per_unit[]'];
    var tbl_length = qty.length;

    $em_chk = 0;
    for(i=0; i<tbl_length; i++)
    {
        if((qty[i].value=='') || (pri[i].value=='')){
        $em_chk = 1;
        break;
        }
        else if((qty[i].value.search(/^[0-9]{1,}$/)<0) || (pri[i].value.search(/^[0-9]{0,}[.]{0,1}[0-9]{0,}$/)<0))
        {
        $em_chk = 2;
        break;
        }
    }


    if($em_chk==1)
    {
        err += 'Please fill the Price-Quantity Table !\r\n';
    }

    if($em_chk==2)
    {
        err += 'The Price-Quantity Table can take numberic values only !\r\n';
    }
    //--


    //check Color table - CHECK BOXES
    var f2 = document.getElementById('f2');
    var vr_colors = f2.elements['vr_colors[]'];
    var tbl_length = vr_colors.length;

    $em_chk = new Array();
    for(i=0; i<tbl_length; i++)
    {
        $em_chk[$em_chk.length] = vr_colors[i].checked;
    }

    if(in_array(true, $em_chk)==false)
    {
        err += 'Please select atleast 1 Available Colors !\r\n';
    }
    //--


    if(err!='')
    {
        alert("Please clear the following ERROR(s):\r\n\r\n"+err);
        return false;
    }
    else
    {
       document.getElementById('req_frm').submit();
       return true;
	}

    return false;

}//end func......